Pollen Monitor
Daily pollen insights

Daily pollen overview

San Jose pollen count

Latest detail and daily averages and peaks across all 391 captured day(s).

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Risk levels use category-specific National Allergy Bureau thresholds. Weed is labeled Ragweed because it is the sole weed species in the current multi-region dataset.

Latest daily detail

Tue, Oct 13, 2026. Daily averages and highest observed values.

America/Los_Angeles

Total

58

Average

117

Peak

Tree

None

0

Average

0

Peak

Grass

None

0

Average

0

Peak

Ragweed

High

58

Average

117

Peak

Values are modeled grains/m³. Risk badges use the daily peak for each category.

Species breakdown

Daily average grains/m³ for each reported allergen.

Tree

Ash0
Elm0
Oak0
Pine0
Birch0
Maple0
Mulberry0
Poplar/Cottonwood0
Cypress/Juniper/Cedar0

Grass

Grass0

Ragweed

Ragweed58

Complete daily history

Average and peak modeled grains/m³ for all 391 captured days. Scroll sideways on smaller screens.

Complete daily pollen averages and peaks, newest first
DateTotalTreeGrassRagweed
AveragePeakAveragePeakAveragePeakAveragePeak
Tue, Oct 13, 2026Latest58117000058117
Mon, Oct 12, 202651101000051101
Sun, Oct 11, 2026579800005798
Sat, Oct 10, 202657108000057108
Fri, Oct 9, 202661118000061118
Thu, Oct 8, 2026529100005291
Wed, Oct 7, 202662100000062100
Tue, Oct 6, 202677123000077123
Mon, Oct 5, 202687145000087145
Sun, Oct 4, 202675119000075119
Sat, Oct 3, 202667124590063115
Fri, Oct 2, 2026571248190049105
Thu, Oct 1, 20267517621500054126
Wed, Sep 30, 2026641052440003965
Tue, Sep 29, 2026551622881002881
Mon, Sep 28, 2026601523076003076
Sun, Sep 27, 2026631543177003177
Sat, Sep 26, 2026711623681003681
Fri, Sep 25, 202692320461600046160
Thu, Sep 24, 2026831544177004177
Wed, Sep 23, 2026701283564003564
Tue, Sep 22, 2026831644182004182
Mon, Sep 21, 2026701523576003576
Sun, Sep 20, 2026771523876003876
Sat, Sep 19, 2026771483874003874
Fri, Sep 18, 202680202401010040101
Thu, Sep 17, 2026891604580004580
Wed, Sep 16, 2026791483974003974
Tue, Sep 15, 2026751643782003782
Mon, Sep 14, 2026671283464003464
Sun, Sep 13, 2026841424271004271
Sat, Sep 12, 2026911744687004687
Fri, Sep 11, 2026781623981003981
Thu, Sep 10, 2026701163558003558
Wed, Sep 9, 2026771063853003853
Tue, Sep 8, 2026691303565003565
Mon, Sep 7, 2026751623781003781
Sun, Sep 6, 2026821724186004186
Sat, Sep 5, 2026791624081004081
Fri, Sep 4, 2026801504075004075
Thu, Sep 3, 2026731433366003977
Wed, Sep 2, 2026671283159003669
Tue, Sep 1, 2026651093050003559
Mon, Aug 31, 20266214324554113477
Sun, Aug 30, 20267115127585113982
Sat, Aug 29, 20266615826615123685
Fri, Aug 28, 202664842532563546
Thu, Aug 27, 202656912235473049
Wed, Aug 26, 202661962337473352
Tue, Aug 25, 2026571042240483156
Mon, Aug 24, 202648721828352639
Sun, Aug 23, 202640681526352237
Sat, Aug 22, 202639611524342133
Fri, Aug 21, 202642701627352338
Thu, Aug 20, 202638471518232126
Wed, Aug 19, 202636461418232025
Tue, Aug 18, 202635441317231924
Mon, Aug 17, 202637461418232025
Sun, Aug 16, 202635461418231925
Sat, Aug 15, 202634461318231925
Fri, Aug 14, 202635461418231925
Thu, Aug 13, 202636571422242031
Wed, Aug 12, 202629391115231621
Tue, Aug 11, 20262335914121319
Mon, Aug 10, 20262329911121316
Sun, Aug 9, 20262232812121218
Sat, Aug 8, 20262427910121315
Fri, Aug 7, 20262327910121315
Thu, Aug 6, 20262428911221315
Wed, Aug 5, 20261826710121014
Tue, Aug 4, 20262028811121115
Mon, Aug 3, 2026212768561013
Sun, Aug 2, 2026212756681013
Sat, Aug 1, 2026223034913913
Fri, Jul 31, 20262431121317912
Thu, Jul 30, 20262229001419810
Wed, Jul 29, 2026202600131779
Tue, Jul 28, 2026212600141779
Mon, Jul 27, 2026202600131779
Sun, Jul 26, 2026202600131779
Sat, Jul 25, 2026212600141779
Fri, Jul 24, 20262431001620911
Thu, Jul 23, 20262228001518810
Wed, Jul 22, 2026212600131779
Tue, Jul 21, 20262129001419810
Mon, Jul 20, 20262128001318710
Sun, Jul 19, 2026202600131779
Sat, Jul 18, 20262129001419710
Fri, Jul 17, 20262229001519810
Thu, Jul 16, 20262332001521811
Wed, Jul 15, 202630350019231012
Tue, Jul 14, 20262128001418710
Mon, Jul 13, 20262634001722912
Sun, Jul 12, 202641840027541530
Sat, Jul 11, 20262639001725914
Fri, Jul 10, 20262428001618910
Thu, Jul 9, 202631500020321118
Wed, Jul 8, 20262232001421812
Tue, Jul 7, 2026152700591019
Mon, Jul 6, 20262063127231238
Sun, Jul 5, 20261939147151021
Sat, Jul 4, 202625734911321132
Fri, Jul 3, 20262812652712541045
Thu, Jul 2, 202626526121224816
Wed, Jul 1, 202623787241136518
Tue, Jun 30, 202637217115618105956
Mon, Jun 29, 202628708181434618
Sun, Jun 28, 202625857261239620
Sat, Jun 27, 202626517141325613
Fri, Jun 26, 202631659201530715
Thu, Jun 25, 202626487151322611
Wed, Jun 24, 202624767231235518
Tue, Jun 23, 202624477141223511
Mon, Jun 22, 202624407121221510
Sun, Jun 21, 202629508141426712
Sat, Jun 20, 2026377211221833917
Fri, Jun 19, 202628468141421711
Thu, Jun 18, 202630589161528715
Wed, Jun 17, 202626477121323612
Tue, Jun 16, 202628598151429615
Mon, Jun 15, 202623517131125513
Sun, Jun 14, 202630829251438719
Sat, Jun 13, 20264682132522381119
Fri, Jun 12, 202645135133822691028
Thu, Jun 11, 202642102122921521026
Wed, Jun 10, 20265085142624411222
Tue, Jun 9, 202663128183830621533
Mon, Jun 8, 202649101142624491126
Sun, Jun 7, 20266197213527431319
Sat, Jun 6, 202617324674109681003251
Fri, Jun 5, 202674133376826481219
Thu, Jun 4, 2026821884711124531124
Wed, Jun 3, 20266613643901734612
Tue, Jun 2, 202674212541471549616
Mon, Jun 1, 2026106231831821742614
Sun, May 31, 202670134551021121411
Sat, May 30, 2026103273802071643623
Fri, May 29, 202696134751061524511
Thu, May 28, 2026117192921561931613
Wed, May 27, 202694137731101523511
Tue, May 26, 2026115338902561854728
Mon, May 25, 202695235751941535511
Sun, May 24, 20268715269122142359
Sat, May 23, 2026112287882331735719
Fri, May 22, 202699253782031633617
Thu, May 21, 2026115263912201837615
Wed, May 20, 202691241722031429515
Tue, May 19, 2026116192911561831714
Mon, May 18, 2026116195911591833714
Sun, May 17, 20262321,1201901,02031851126
Sat, May 16, 202623252918847032481225
Fri, May 15, 202697225771881531517
Thu, May 14, 20261564171243652339820
Wed, May 13, 202620545516540030461120
Tue, May 12, 202615726912420824411020
Mon, May 11, 202620953016946529561125
Sun, May 10, 202623741019234432551329
Sat, May 9, 20261981,3091641,18224831044
Fri, May 8, 2026297719242627401041655
Thu, May 7, 202635886430677136621633
Wed, May 6, 20262465892205592133513
Tue, May 5, 20261954181773951443413
Mon, May 4, 202621141120340761628
Sun, May 3, 202622665521964951729
Sat, May 2, 20262681,1832671,1751414
Fri, May 1, 20263188993188990000
Thu, Apr 30, 20263151,0803151,0800000
Wed, Apr 29, 20262297272297270000
Tue, Apr 28, 20262776342776340000
Mon, Apr 27, 20262917172917170000
Sun, Apr 26, 20262231,0752231,0750000
Sat, Apr 25, 20264592,3734592,3730000
Fri, Apr 24, 20264901,7594901,7590000
Thu, Apr 23, 20264181,4734181,4730000
Wed, Apr 22, 20264431,9634431,9630000
Tue, Apr 21, 20264701,5674701,5670000
Mon, Apr 20, 20262991,1262991,1260000
Sun, Apr 19, 20264021,3444021,3440000
Sat, Apr 18, 20264242,1924242,1920000
Fri, Apr 17, 20263371,5283371,5280000
Thu, Apr 16, 20265252,2545252,2540000
Wed, Apr 15, 20267784,3627784,3620000
Tue, Apr 14, 20268675,4608675,4600000
Mon, Apr 13, 20267273,4257273,4250000
Sun, Apr 12, 20264241,7394241,7390000
Sat, Apr 11, 20265342,4595342,4590000
Fri, Apr 10, 20265642,2575642,2570000
Thu, Apr 9, 20269473,5259473,5250000
Wed, Apr 8, 20266351,6586351,6580000
Tue, Apr 7, 20266552,0566552,0560000
Mon, Apr 6, 20268202,4588202,4580000
Sun, Apr 5, 20267603,3267603,3260000
Sat, Apr 4, 20266122,3466122,3460000
Fri, Apr 3, 20265182,7115182,7110000
Thu, Apr 2, 20261,0564,4301,0564,4300000
Wed, Apr 1, 20268264,2278264,2270000
Tue, Mar 31, 20267343,7807343,7800000
Mon, Mar 30, 20269454,9419454,9410000
Sun, Mar 29, 20268383,8428383,8420000
Sat, Mar 28, 20267432,6257432,6250000
Fri, Mar 27, 20267353,1447353,1440000
Thu, Mar 26, 20266894,3346894,3340000
Wed, Mar 25, 20268304,1788304,1780000
Tue, Mar 24, 20263801,5343801,5340000
Mon, Mar 23, 20268514,3348514,3340000
Sun, Mar 22, 20269064,0209064,0200000
Sat, Mar 21, 20268394,1328394,1320000
Fri, Mar 20, 20267971,9247971,9240000
Thu, Mar 19, 20263509043509040000
Wed, Mar 18, 20265406,6485406,6480000
Tue, Mar 17, 20262688032688030000
Mon, Mar 16, 20265303,7245303,7240000
Sun, Mar 15, 20263701,3673701,3670000
Sat, Mar 14, 20263611,1813611,1810000
Fri, Mar 13, 20262858852858850000
Thu, Mar 12, 20263441,2523441,2520000
Wed, Mar 11, 20262217222217220000
Tue, Mar 10, 20262638422638420000
Mon, Mar 9, 20262076092076090000
Sun, Mar 8, 20263221,0903221,0900000
Sat, Mar 7, 20262849122849120000
Fri, Mar 6, 20262746002746000000
Thu, Mar 5, 20263127833127830000
Wed, Mar 4, 20263081,5293081,5290000
Tue, Mar 3, 20262421,2732421,2730000
Mon, Mar 2, 20262735652735650000
Sun, Mar 1, 20262477782477780000
Sat, Feb 28, 20262034562034560000
Fri, Feb 27, 20262257302257300000
Thu, Feb 26, 20265282,3225282,3220000
Wed, Feb 25, 20264061,3154061,3150000
Tue, Feb 24, 20262495322495320000
Mon, Feb 23, 20261574321574320000
Sun, Feb 22, 20262597602597600000
Sat, Feb 21, 20261975561975560000
Fri, Feb 20, 20262076182076180000
Thu, Feb 19, 20262076392076390000
Wed, Feb 18, 20261172871172870000
Tue, Feb 17, 20261654121654120000
Mon, Feb 16, 20261997471997470000
Sun, Feb 15, 20261502201502200000
Sat, Feb 14, 20261303561303560000
Fri, Feb 13, 20261954791954790000
Thu, Feb 12, 20261523681523680000
Wed, Feb 11, 20261803201803200000
Tue, Feb 10, 20261323551323550000
Mon, Feb 9, 202699190991900000
Sun, Feb 8, 202699202992020000
Sat, Feb 7, 202670122701220000
Fri, Feb 6, 20261002031002030000
Thu, Feb 5, 20261031791031790000
Wed, Feb 4, 202690150901500000
Tue, Feb 3, 202684293842930000
Mon, Feb 2, 20261865021865020000
Sun, Feb 1, 202696174961740000
Sat, Jan 31, 202677316773160000
Fri, Jan 30, 202652117521170000
Thu, Jan 29, 202660119601190000
Wed, Jan 28, 202694181941810000
Tue, Jan 27, 202682265822650000
Mon, Jan 26, 2026509450940000
Sun, Jan 25, 202650111501110000
Sat, Jan 24, 202685184851840000
Fri, Jan 23, 2026467546750000
Thu, Jan 22, 202670211702110000
Wed, Jan 21, 202674144741440000
Tue, Jan 20, 20261243961243960000
Mon, Jan 19, 202665154651540000
Sun, Jan 18, 202653116531160000
Sat, Jan 17, 202651141511410000
Fri, Jan 16, 2026478247820000
Thu, Jan 15, 202647222472220000
Wed, Jan 14, 20261189601189600000
Tue, Jan 13, 202643121431210000
Mon, Jan 12, 202669182691820000
Sun, Jan 11, 202684361843610000
Sat, Jan 10, 202635107351070000
Fri, Jan 9, 2026479747970000
Thu, Jan 8, 202666331663310000
Wed, Jan 7, 202666349663490000
Tue, Jan 6, 202665265652650000
Mon, Jan 5, 202647103471030000
Sun, Jan 4, 2026266726670000
Sat, Jan 3, 202642112421120000
Fri, Jan 2, 2026276027600000
Thu, Jan 1, 202644231442310000
Wed, Dec 31, 2025244524450000
Tue, Dec 30, 2025278527850000
Mon, Dec 29, 2025438943890000
Sun, Dec 28, 202532107321070000
Sat, Dec 27, 2025133213320000
Fri, Dec 26, 202552187521870000
Thu, Dec 25, 202560522605220000
Wed, Dec 24, 202589568895680000
Tue, Dec 23, 2025298829880000
Mon, Dec 22, 2025307530750000
Sun, Dec 21, 202529125291250000
Sat, Dec 20, 2025379237920000
Fri, Dec 19, 2025267226720000
Thu, Dec 18, 202547338473380000
Wed, Dec 17, 2025248124810000
Tue, Dec 16, 202538265382650000
Mon, Dec 15, 20256136130000
Sun, Dec 14, 20257227220000
Sat, Dec 13, 2025116711670000
Fri, Dec 12, 20257207200000
Thu, Dec 11, 20257177170000
Wed, Dec 10, 20258248240000
Tue, Dec 9, 20256166160000
Mon, Dec 8, 20257197190000
Sun, Dec 7, 20254134120001
Sat, Dec 6, 20255154110014
Fri, Dec 5, 202572941700312
Thu, Dec 4, 202593141300518
Wed, Dec 3, 20258272700620
Tue, Dec 2, 20256290300626
Mon, Dec 1, 20255110000511
Sun, Nov 30, 20257270000727
Sat, Nov 29, 2025103300001033
Fri, Nov 28, 20256150000615
Thu, Nov 27, 2025196600001966
Wed, Nov 26, 202519161000019161
Tue, Nov 25, 2025115300001153
Mon, Nov 24, 20257170000717
Sun, Nov 23, 202510118000010118
Sat, Nov 22, 20256180000618
Fri, Nov 21, 2025103700001037
Thu, Nov 20, 20257210000721
Wed, Nov 19, 20256220000622
Tue, Nov 18, 20256170000617
Mon, Nov 17, 20258200000820
Sun, Nov 16, 20257170000717
Sat, Nov 15, 20256140000614
Fri, Nov 14, 20259440000944
Thu, Nov 13, 2025173100001731
Wed, Nov 12, 2025173500001735
Tue, Nov 11, 2025135900001359
Mon, Nov 10, 2025113100001131
Sun, Nov 9, 2025112300001123
Sat, Nov 8, 2025123100001231
Fri, Nov 7, 2025184100001841
Thu, Nov 6, 2025112700001127
Wed, Nov 5, 2025163900001639
Tue, Nov 4, 2025122500001225
Mon, Nov 3, 2025156500001565
Sun, Nov 2, 2025144700001447
Sat, Nov 1, 202522111000022111
Fri, Oct 31, 202526221000026221
Thu, Oct 30, 2025236300002363
Wed, Oct 29, 2025329800003298
Tue, Oct 28, 202527309000027309
Mon, Oct 27, 2025264100002641
Sun, Oct 26, 2025214700002147
Sat, Oct 25, 2025174100001741
Fri, Oct 24, 2025235800002358
Thu, Oct 23, 2025245400002454
Wed, Oct 22, 2025255800002558
Tue, Oct 21, 2025204400002044
Mon, Oct 20, 2025258100002581
Sun, Oct 19, 202532148000032148
Sat, Oct 18, 2025356100003561
Fri, Oct 17, 2025267400002674
Thu, Oct 16, 2025237700002377
Wed, Oct 15, 2025336500003365
Tue, Oct 14, 2025165300001653
Mon, Oct 13, 202540219000040219
Sun, Oct 12, 202548136000048136
Sat, Oct 11, 202552132000052132
Fri, Oct 10, 202531130000031130
Thu, Oct 9, 202545117000045117
Wed, Oct 8, 202546111000046111
Tue, Oct 7, 2025337600003376
Mon, Oct 6, 202547140000047140
Sun, Oct 5, 202537101000037101
Sat, Oct 4, 2025389900003899
Fri, Oct 3, 202526104000026104
Thu, Oct 2, 202548109000048109
Wed, Oct 1, 202548165000048165
Tue, Sep 30, 202567222000067222
Mon, Sep 29, 202545129000045129
Sun, Sep 28, 202550134000050134
Sat, Sep 27, 202557127000057127
Fri, Sep 26, 202547167000047167
Thu, Sep 25, 202572167000072167
Wed, Sep 24, 202569216000069216
Tue, Sep 23, 202569163000069163
Mon, Sep 22, 202545224000045224
Sun, Sep 21, 202564453000064453
Sat, Sep 20, 202569237000069237
Fri, Sep 19, 202563233000063233
Thu, Sep 18, 202561192000061192