Pollen Monitor
Daily pollen insights

Daily pollen overview

Santa Rosa pollen count

Latest detail and daily averages and peaks across all 390 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

47

Average

91

Peak

Tree

None

0

Average

0

Peak

Grass

None

0

Average

0

Peak

Ragweed

High

47

Average

91

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

Ragweed47

Complete daily history

Average and peak modeled grains/m³ for all 390 captured days. Scroll sideways on smaller screens.

Complete daily pollen averages and peaks, newest first
DateTotalTreeGrassRagweed
AveragePeakAveragePeakAveragePeakAveragePeak
Tue, Oct 13, 2026Latest479100004791
Mon, Oct 12, 2026446700004467
Sun, Oct 11, 202658119000058119
Sat, Oct 10, 2026387400003874
Fri, Oct 9, 2026508600005086
Thu, Oct 8, 2026435800004358
Wed, Oct 7, 2026539500005395
Tue, Oct 6, 202658116000058116
Mon, Oct 5, 202673120000073120
Sun, Oct 4, 2026639400006394
Sat, Oct 3, 202662128490058119
Fri, Oct 2, 202655113917004796
Thu, Oct 1, 2026581241635004189
Wed, Sep 30, 2026691112743004368
Tue, Sep 29, 2026501222561002561
Mon, Sep 28, 2026581363068002868
Sun, Sep 27, 2026541262763002763
Sat, Sep 26, 2026601363168002968
Fri, Sep 25, 2026711343667003667
Thu, Sep 24, 202670963548003548
Wed, Sep 23, 2026661223361003361
Tue, Sep 22, 2026641263263003263
Mon, Sep 21, 2026611043152003152
Sun, Sep 20, 2026651363368003368
Sat, Sep 19, 2026641283364003264
Fri, Sep 18, 2026711583679003679
Thu, Sep 17, 2026761363868003868
Wed, Sep 16, 2026571222961002961
Tue, Sep 15, 2026651343367003267
Mon, Sep 14, 2026641363268003268
Sun, Sep 13, 202665983249003249
Sat, Sep 12, 2026701363568003568
Fri, Sep 11, 2026591262963002963
Thu, Sep 10, 2026671163358003358
Wed, Sep 9, 202667803340003340
Tue, Sep 8, 202661823141003141
Mon, Sep 7, 2026681123556003356
Sun, Sep 6, 2026681183459003359
Sat, Sep 5, 2026671183459003359
Fri, Sep 4, 2026571202960002960
Thu, Sep 3, 2026571062649003057
Wed, Sep 2, 2026461042148002556
Tue, Sep 1, 2026661133052003561
Mon, Aug 31, 20265613022504103070
Sun, Aug 30, 2026631172445593463
Sat, Aug 29, 2026511072041382758
Fri, Aug 28, 202658702227453238
Thu, Aug 27, 202655682126453037
Wed, Aug 26, 202655682126452937
Tue, Aug 25, 202640681626352237
Mon, Aug 24, 202646681826352537
Sun, Aug 23, 202633541321241829
Sat, Aug 22, 202633481319231826
Fri, Aug 21, 202634721328251939
Thu, Aug 20, 202629441117231624
Wed, Aug 19, 202627441017231524
Tue, Aug 18, 202627441117231524
Mon, Aug 17, 202632441217231724
Sun, Aug 16, 202628441117231524
Sat, Aug 15, 202627391015231521
Fri, Aug 14, 202629391115231621
Thu, Aug 13, 202628441117231524
Wed, Aug 12, 20261936714121020
Tue, Aug 11, 20261733713121018
Mon, Aug 10, 2026162661012914
Sun, Aug 9, 2026162961112916
Sat, Aug 8, 2026152661012914
Fri, Aug 7, 2026162661012914
Thu, Aug 6, 2026162771012915
Wed, Aug 5, 202614226911812
Tue, Aug 4, 2026172671012914
Mon, Aug 3, 202620276846913
Sun, Aug 2, 202620274668913
Sat, Aug 1, 2026193034813813
Fri, Jul 31, 20262131121217812
Thu, Jul 30, 20262129001419710
Wed, Jul 29, 20262129001319710
Tue, Jul 28, 20262129001319710
Mon, Jul 27, 2026192600121779
Sun, Jul 26, 2026192600121779
Sat, Jul 25, 20262029001319710
Fri, Jul 24, 20262129001419710
Thu, Jul 23, 2026172600111769
Wed, Jul 22, 20262132001421711
Tue, Jul 21, 20262028001318710
Mon, Jul 20, 2026162300111568
Sun, Jul 19, 2026162500101659
Sat, Jul 18, 2026162500101669
Fri, Jul 17, 20262131001320711
Thu, Jul 16, 20262229001419810
Wed, Jul 15, 202630360020231113
Tue, Jul 14, 20262128001318710
Mon, Jul 13, 202628340018221012
Sun, Jul 12, 202629440019281016
Sat, Jul 11, 20262136001423713
Fri, Jul 10, 20262028001318710
Thu, Jul 9, 20262350001532818
Wed, Jul 8, 20261828001218717
Tue, Jul 7, 202611290039820
Mon, Jul 6, 20262133127101321
Sun, Jul 5, 20262163258241134
Sat, Jul 4, 202628454711171221
Fri, Jul 3, 20262337481016813
Thu, Jul 2, 2026221225281056738
Wed, Jul 1, 2026191256381058429
Tue, Jun 30, 20262139612101859
Mon, Jun 29, 202626558151327614
Sun, Jun 28, 20263916011491974937
Sat, Jun 27, 2026241207311258631
Fri, Jun 26, 20263511310291755829
Thu, Jun 25, 202625437121221611
Wed, Jun 24, 202620466121022412
Tue, Jun 23, 20262445713122359
Mon, Jun 22, 202622456141122511
Sun, Jun 21, 202620406121020410
Sat, Jun 20, 20264359121721291015
Fri, Jun 19, 202625547151228612
Thu, Jun 18, 202632659201630715
Wed, Jun 17, 2026396611201931915
Tue, Jun 16, 202632549161626714
Mon, Jun 15, 202627538161327612
Sun, Jun 14, 202625517141225613
Sat, Jun 13, 2026408511261939920
Fri, Jun 12, 2026395811161930914
Thu, Jun 11, 202642109123121561023
Wed, Jun 10, 2026356510201730815
Tue, Jun 9, 202648112143223571123
Mon, Jun 8, 20264378132421361018
Sun, Jun 7, 202661168215227771339
Sat, Jun 6, 2026114230499445942142
Fri, Jun 5, 202672147357325491125
Thu, Jun 4, 20266912739682039920
Wed, Jun 3, 20266313741921634614
Tue, Jun 2, 202668134501001327513
Mon, Jun 1, 202698247771871639621
Sun, May 31, 202668154531171124413
Sat, May 30, 202689185701441427514
Fri, May 29, 202691157721281422510
Thu, May 28, 202691192711511429515
Wed, May 27, 202695231751941532511
Tue, May 26, 2026101180791391628614
Mon, May 25, 2026104175821351628614
Sun, May 24, 20261413011122542140815
Sat, May 23, 2026109214851701729715
Fri, May 22, 202687216691781433512
Thu, May 21, 2026114245902031844611
Wed, May 20, 20261354341083762050717
Tue, May 19, 202691226721801430516
Mon, May 18, 2026106180831441730614
Sun, May 17, 20261634421303732466924
Sat, May 16, 20261382241081842237814
Fri, May 15, 2026115241901931834714
Thu, May 14, 20261598631307842156823
Wed, May 13, 20261557581256632262833
Tue, May 12, 20263141,1702631,04938821342
Mon, May 11, 202621465117456529561130
Sun, May 10, 202621438617233230541228
Sat, May 9, 20261696071385422254829
Fri, May 8, 202623556419149632611226
Thu, May 7, 20263261,1962791,08633721438
Wed, May 6, 20263861,1173491,0573059824
Tue, May 5, 20261894461704101428512
Mon, May 4, 2026282858271836819311
Sun, May 3, 2026315800308794517210
Sat, May 2, 20262941,1942931,1861414
Fri, May 1, 20262521,1262521,1260000
Thu, Apr 30, 20262269232269230000
Wed, Apr 29, 20261884571884570000
Tue, Apr 28, 20261844611844610000
Mon, Apr 27, 20262325682325680000
Sun, Apr 26, 20264543,6074543,6070000
Sat, Apr 25, 20263161,3983161,3980000
Fri, Apr 24, 20264452,5094452,5090000
Thu, Apr 23, 20263391,2333391,2330000
Wed, Apr 22, 20265003,4815003,4810000
Tue, Apr 21, 20264192,0874192,0870000
Mon, Apr 20, 20264331,5684331,5680000
Sun, Apr 19, 20263149833149830000
Sat, Apr 18, 20264321,9334321,9330000
Fri, Apr 17, 20262811,1472811,1470000
Thu, Apr 16, 20263891,8233891,8230000
Wed, Apr 15, 20264761,3444761,3440000
Tue, Apr 14, 20267383,8647383,8640000
Mon, Apr 13, 20264902,1634902,1630000
Sun, Apr 12, 20264133,1514133,1510000
Sat, Apr 11, 20263591,3083591,3080000
Fri, Apr 10, 20264792,6994792,6990000
Thu, Apr 9, 20268024,6108024,6100000
Wed, Apr 8, 20265422,1405422,1400000
Tue, Apr 7, 20267803,3617803,3610000
Mon, Apr 6, 20266322,0156322,0150000
Sun, Apr 5, 20268553,1768553,1760000
Sat, Apr 4, 20264341,6514341,6510000
Fri, Apr 3, 20263721,2443721,2440000
Thu, Apr 2, 20263849683849680000
Wed, Apr 1, 20263479783479780000
Tue, Mar 31, 20267235,1417235,1410000
Mon, Mar 30, 20261,0164,7471,0164,7470000
Sun, Mar 29, 20268582,3088582,3080000
Sat, Mar 28, 20267263,4007263,4000000
Fri, Mar 27, 20268563,7068563,7060000
Thu, Mar 26, 20266852,9106852,9100000
Wed, Mar 25, 20268145,6088145,6080000
Tue, Mar 24, 20263511,7953511,7950000
Mon, Mar 23, 20263368813368810000
Sun, Mar 22, 20268334,6278334,6270000
Sat, Mar 21, 20264641,4074641,4070000
Fri, Mar 20, 20268262,1778262,1770000
Thu, Mar 19, 20264082,3844082,3840000
Wed, Mar 18, 20262611,3672611,3670000
Tue, Mar 17, 20263723,9173723,9170000
Mon, Mar 16, 20263201,3123201,3120000
Sun, Mar 15, 20262276752276750000
Sat, Mar 14, 20262706472706470000
Fri, Mar 13, 20262591,0492591,0490000
Thu, Mar 12, 20262254682254680000
Wed, Mar 11, 20261935681935680000
Tue, Mar 10, 20262084662084660000
Mon, Mar 9, 20262079712079710000
Sun, Mar 8, 20262491,0262491,0260000
Sat, Mar 7, 20262667022667020000
Fri, Mar 6, 20263068093068090000
Thu, Mar 5, 20262436252436250000
Wed, Mar 4, 20262085442085440000
Tue, Mar 3, 20262115262115260000
Mon, Mar 2, 20262265732265730000
Sun, Mar 1, 20262355782355780000
Sat, Feb 28, 20261776001776000000
Fri, Feb 27, 20262008722008720000
Thu, Feb 26, 20262949132949130000
Wed, Feb 25, 20265191,0725191,0720000
Tue, Feb 24, 20262791,2662791,2660000
Mon, Feb 23, 20261774061774060000
Sun, Feb 22, 20262745652745650000
Sat, Feb 21, 20262211,0722211,0720000
Fri, Feb 20, 20261425481425480000
Thu, Feb 19, 20261975461975460000
Wed, Feb 18, 202697283972830000
Tue, Feb 17, 20261404131404130000
Mon, Feb 16, 20261573491573490000
Sun, Feb 15, 20261463271463270000
Sat, Feb 14, 20261151981151980000
Fri, Feb 13, 20263101,5243101,5240000
Thu, Feb 12, 20261353241353240000
Wed, Feb 11, 20261642761642760000
Tue, Feb 10, 20261112261112260000
Mon, Feb 9, 202673180731800000
Sun, Feb 8, 20261143051143050000
Sat, Feb 7, 202658132581320000
Fri, Feb 6, 202698364983640000
Thu, Feb 5, 20261132441132440000
Wed, Feb 4, 20261122421122420000
Tue, Feb 3, 202679173791730000
Mon, Feb 2, 20261253061253060000
Sun, Feb 1, 20261061971061970000
Sat, Jan 31, 202681253812530000
Fri, Jan 30, 2026467746770000
Thu, Jan 29, 202659146591460000
Wed, Jan 28, 202677188771880000
Tue, Jan 27, 202683196831960000
Mon, Jan 26, 202654222542220000
Sun, Jan 25, 202653293532930000
Sat, Jan 24, 202674234742340000
Fri, Jan 23, 2026549354930000
Thu, Jan 22, 2026648664860000
Wed, Jan 21, 202672198721980000
Tue, Jan 20, 202690213902130000
Mon, Jan 19, 202662158621580000
Sun, Jan 18, 202686663866630000
Sat, Jan 17, 202684418844180000
Fri, Jan 16, 202674187741870000
Thu, Jan 15, 202677345773450000
Wed, Jan 14, 2026629062900000
Tue, Jan 13, 202649176491760000
Mon, Jan 12, 202655121551210000
Sun, Jan 11, 202657129571290000
Sat, Jan 10, 202641125411250000
Fri, Jan 9, 2026297229720000
Thu, Jan 8, 202655418554180000
Wed, Jan 7, 202662268622680000
Tue, Jan 6, 202648204482040000
Mon, Jan 5, 202635177351770000
Sun, Jan 4, 2026267426740000
Sat, Jan 3, 2026388238820000
Fri, Jan 2, 2026254325430000
Thu, Jan 1, 2026257825780000
Wed, Dec 31, 2025216421640000
Tue, Dec 30, 2025184518450000
Mon, Dec 29, 202542146421460000
Sun, Dec 28, 2025359835980000
Sat, Dec 27, 2025144314430000
Fri, Dec 26, 202540261402610000
Thu, Dec 25, 202523107231070000
Wed, Dec 24, 202530134301340000
Tue, Dec 23, 202552413524130000
Mon, Dec 22, 2025136713670000
Sun, Dec 21, 202522161221610000
Sat, Dec 20, 2025245024500000
Fri, Dec 19, 2025248124810000
Thu, Dec 18, 2025142214220000
Wed, Dec 17, 2025189218920000
Tue, Dec 16, 2025581,142581,1420000
Mon, Dec 15, 2025134813480000
Sun, Dec 14, 20256136130000
Sat, Dec 13, 20259449440000
Fri, Dec 12, 20256156150000
Thu, Dec 11, 20258218210000
Wed, Dec 10, 20257177170000
Tue, Dec 9, 20257207200000
Mon, Dec 8, 20257197190000
Sun, Dec 7, 202538380000
Sat, Dec 6, 20255214150016
Fri, Dec 5, 202549250014
Thu, Dec 4, 2025714360048
Wed, Dec 3, 20251460417001043
Tue, Dec 2, 20255150100514
Mon, Dec 1, 20255120000512
Sun, Nov 30, 20254200000420
Sat, Nov 29, 202549000049
Fri, Nov 28, 20255110000511
Thu, Nov 27, 20257230000723
Wed, Nov 26, 2025108100001081
Tue, Nov 25, 2025155400001554
Mon, Nov 24, 20255150000515
Sun, Nov 23, 20255170000517
Sat, Nov 22, 20257180000718
Fri, Nov 21, 20258190000819
Thu, Nov 20, 20257140000714
Wed, Nov 19, 20256180000618
Tue, Nov 18, 20257190000719
Mon, Nov 17, 20257220000722
Sun, Nov 16, 20257230000723
Sat, Nov 15, 20259250000925
Fri, Nov 14, 20257200000720
Thu, Nov 13, 2025163200001632
Wed, Nov 12, 2025123600001236
Tue, Nov 11, 2025102200001022
Mon, Nov 10, 2025112200001122
Sun, Nov 9, 20259190000919
Sat, Nov 8, 2025112800001128
Fri, Nov 7, 2025112100001121
Thu, Nov 6, 20258260000826
Wed, Nov 5, 2025143200001432
Tue, Nov 4, 2025112400001124
Mon, Nov 3, 2025166100001661
Sun, Nov 2, 2025165400001654
Sat, Nov 1, 202538186000038186
Fri, Oct 31, 2025208200002082
Thu, Oct 30, 2025194900001949
Wed, Oct 29, 202529121000029121
Tue, Oct 28, 2025153800001538
Mon, Oct 27, 202521103000021103
Sun, Oct 26, 2025153800001538
Sat, Oct 25, 2025173700001737
Fri, Oct 24, 2025225400002254
Thu, Oct 23, 2025194600001946
Wed, Oct 22, 2025204600002046
Tue, Oct 21, 2025214500002145
Mon, Oct 20, 2025237300002373
Sun, Oct 19, 2025204900002049
Sat, Oct 18, 2025339200003392
Fri, Oct 17, 202532133000032133
Thu, Oct 16, 202532149000032149
Wed, Oct 15, 2025295900002959
Tue, Oct 14, 2025111700001117
Mon, Oct 13, 2025338700003387
Sun, Oct 12, 202543122000043122
Sat, Oct 11, 202548150000048150
Fri, Oct 10, 202531140000031140
Thu, Oct 9, 2025243400002434
Wed, Oct 8, 202532115000032115
Tue, Oct 7, 2025286200002862
Mon, Oct 6, 202541204000041204
Sun, Oct 5, 202545144000045144
Sat, Oct 4, 202556180000056180
Fri, Oct 3, 2025298200002982
Thu, Oct 2, 2025317900003179
Wed, Oct 1, 2025172700001727
Tue, Sep 30, 2025269800002698
Mon, Sep 29, 2025349000003490
Sun, Sep 28, 202542119000042119
Sat, Sep 27, 202550146000050146
Fri, Sep 26, 202544182000044182
Thu, Sep 25, 202566158000066158
Wed, Sep 24, 2025478700004787
Tue, Sep 23, 202543110000043110
Mon, Sep 22, 202556211000056211
Sun, Sep 21, 202551215000051215
Sat, Sep 20, 202558216000058216
Fri, Sep 19, 202545185000045185