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Latest Observation

13 Stations

Daily Data | America/Los_Angeles
as of 6/1/26 4:18 PM PDT
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Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Montesol 5/31/26 78.7   5.7 1658 45.1   1.8 0311 - - - - - - - 0.00 50.54 - - 40   20
Pope Valley (Weeks Lake) 5/31/26 86.2   6.6 1502 42.8   0.8 0544 49.1   0.2 100   0 26   4 2.0   0.2 12.9   0.9 1409 WSW | 249 0.00 26.64 0.218   0.029 639   37 60   10
Dollarhide Base 5/31/26 89.6   6.6 1540 48.5   0.4 0524 52.6   0.2 97   2 31   3 2.6   0.4 14.5   2.3 1452 WSW | 250 0.00 23.55 0.254   0.018 740   0 90   10
Dollarhide 1AS Remote 5/31/26 89.4   6.4 1609 43.5   1.1 0545 51.1   0.6 94   0 30   3 1.9   0.2 14.6   1.0 1616 SW | 226 - - - - 60   10
Dollarhide 16A Remote 5/31/26 88.9   7.0 1606 47.6   0.3 0546 52.4   0.2 98   1 32   5 - - - - - - - - 60   10
Dollarhide 18A Remote 5/31/26 88.7   7.7 1556 41.6   1.3 0541 50.2   0.8 99   1 30   5 - - - - - - - - 90   10
Hardin Rd (Eakle) 5/31/26 88.9   6.8 1602 46.0   0.1 0616 - - - - - - - - - - - 90   10
Angwin 5/31/26 77.7   6.8 1551 54.9   3.4 0152 46.6   1.8 68   24 35   8 3.6   1.0 12.0   0.2 0810 NNW | 343 0.00 46.17 0.050   0.023 0   0 40   20
Lower Angwin (Pioneer) 5/31/26 79.2   6.0 1514 45.8   4.6 0111 - - - 2.5   0.8 12.7   0.5 1644 WNW | 285 - - - - 40   20
Las Posadas (Cal Fire) 5/31/26 82.1   6.9 1432 51.4   5.5 0520 48.6   0.5 82   17 32   4 5.1   1.4 21.1   2.9 1832 W | 261 0.00 35.41 0.235   0.034 635   2 -
Deer Park 5/31/26 85.1   5.0 1452 50.4   0.1 0556 48.1   1.5 84   15 29   4 2.7   0.0 15.4   3.4 1445 WNW | 290 0.00 29.37 0.186   0.039 497   71 70   20
Lower Chiles Valley (Brown) 5/31/26 84.9   6.9 1550 41.0   5.3 0600 47.9   1.9 100   0 29   1 1.8   1.1 14.6   0.4 1720 W | 272 0.00 26.24 0.227   0.034 699   32 70   20
Moss Creek Vineyard/Reservior 5/31/26 87.9   6.8 1547 46.3   2.3 0548 48.5   1.6 96   4 21   9 - - - - 0.00 27.15 - - 30   10
Max   89.6 - 54.9 - 52.6 100 35 5.1 21.1 - - 0.00 50.54 0.254 740 -
Avg   - - - - 49.5 - - 2.8 - - - - - - - -
Min   77.7 - 41.0 - 46.6 68 21 1.8 12.0 - - 0.00 23.55 0.050 0 -

Northern & Central Napa County

26 Stations

Daily Data | America/Los_Angeles
as of 6/1/26 4:18 PM PDT
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Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Calistoga-North 5/31/26 88.7   6.1 1339 45.9   5.6 0544 52.8   1.2 97   1 32   5 - - - - 0.00 32.79 - - 30   10
Diamond Mtn (Schramsberg) 5/31/26 84.0   6.2 1545 51.9   2.8 0559 47.2   1.9 76   24 29   2 - - - - 0.00 31.46 - - 70   20
Diamond Mtn (McEachran) 5/31/26 83.3   5.6 1419 50.3   0.6 0609 48.0   1.2 89   8 28   2 - - - - - - - - 60   20
St. Helena-North 5/31/26 88.5   5.9 1343 47.2   5.1 0557 46.3   2.1 88   3 23   3 1.8 13.8   3.3 1616 NNW | 339 0.00 31.48 0.197   0.036 576   70 60   10
St. Helena (NVV Office) 5/31/26 88.5   5.1 1437 48.3   4.5 0554 - - - 1.4 12.6   2.4 1603 SW | 217 0.00 29.13 - - 80   10
Tiara Fria (East St. Helena) 5/31/26 87.1   6.6 1500 48.0   4.3 0554 49.3   1.5 95   1 27   7 2.0 14.1   1.4 1749 WSW | 247 0.00 27.01 - - 50   10
Rutherford Hill Estate 5/31/26 88.7   6.3 1540 49.3   1.6 0544 49.1   1.7 90   10 26   7 1.9 12.5   1.1 1650 WSW | 252 0.00 25.35 0.200   0.036 597   62 60   10
Rutherford-North (Mee Ln) 5/31/26 87.3   5.7 1524 43.5   5.5 0602 49.5   0.8 96   1 27   6 2.2 14.0   0.2 1626 NW | 315 0.00 24.87 0.211   0.038 622   78 30   10
Rutherford (STS) 5/31/26 89.3   7.0 1428 44.6   5.7 0532 51.6   0.8 92   0 31   7 2.1 18.3   6.6 1510 SE | 146 0.00 26.10 0.236   0.041 717   86 90   10
Oakville-NE (Ranch 88) 5/31/26 88.5   6.4 1556 44.8   5.0 0558 49.1   0.8 94   3 25   4 1.6 12.2   0.1 1438 SSE | 166 0.00 25.32 0.211   0.039 640   95 90   10
OV561-East 5/31/26 89.5   5.5 1539 47.0   5.0 0513 - - - - - - - - - - - 50   10
Oakville 5/31/26 86.4   6.1 1528 45.6   4.8 0557 49.9   0.4 96   3 28   3 2.7 14.6   1.4 1643 WSW | 252 0.00 26.11 0.233   0.044 708   94 30   10
OV518-West 5/31/26 85.8   4.8 1449 46.8   4.8 0546 - - - - - - - - - - - 60   20
To Kalon Remote (TKKE) 5/31/26 88.1   6.7 1535 45.2   4.2 0509 - - - - - - - - - - - 80   10
To Kalon 5/31/26 86.8   7.1 1507 45.8   4.1 0553 49.5   1.3 97   2 28   6 2.4 16.8   4.0 1610 WSW | 237 0.00 28.00 0.219   0.040 654   94 30   10
To Kalon Remote (TKN5) 5/31/26 89.0   7.0 1454 45.7   4.7 0550 - - - - - - - - - - - 80   10
Yountville (Ranch 67) 5/31/26 84.6   6.9 1619 45.4   4.5 0540 48.9   0.2 96   3 27   7 2.5 15.0   1.3 1510 S | 171 0.00 24.03 0.231   0.038 741   83 60   20
Stags Leap Dist (Silverado Vineyards) 5/31/26 87.3   9.5 1637 45.2   4.8 0529 49.7   0.6 96   4 29   2 1.5 13.4   0.8 1320 S | 175 0.00 28.04 0.213   0.033 693   113 20   20
Borreo (Soda Canyon) 5/31/26 82.8   6.8 1627 44.6   2.9 0535 48.1   0.5 98   1 29   1 2.0 13.1   0.4 1653 SE | 125 0.00 27.74 0.226   0.041 730   92 0   0
Wappo Hill Floor 5/31/26 87.4   8.2 1623 43.7   6.0 0535 49.8   0.6 100   0 29   3 2.3 12.8   0.1 1422 SE | 140 0.00 27.12 0.228   0.040 705   94 60   10
Stags Leap Dist (Chimney Rock) 5/31/26 86.0   7.5 1627 43.6   5.5 0553 51.6   0.1 99   4 34   2 2.2 13.7   0.7 1342 SE | 132 0.00 26.50 0.202   0.032 628   78 10   10
Yountville-South (Ranch 87) 5/31/26 86.6   6.9 1535 46.1   5.2 0526 50.8   0.0 100   5 28   5 1.5 11.7   2.1 1535 SSW | 203 0.00 27.76 0.225   0.037 712   96 90   10
Yountville-SE (Ranch 85) 5/31/26 87.1   7.6 1644 45.8   6.3 0527 50.6   0.0 100   5 30   3 2.2 13.7   1.0 1435 SSE | 154 0.00 26.09 - 0   0 30   10
Oak Knoll-East (Ranch 53) 5/31/26 86.8   8.5 1556 46.7   5.4 0528 49.6   0.2 92   0 27   0 2.0 14.1   0.9 1345 SE | 133 0.00 24.76 0.228   0.038 724   100 60   10
Napa-NW (Ranch 54) 5/31/26 88.4   7.2 1657 47.1   4.0 0445 49.0   0.8 91   2 25   1 1.1 11.4   0.7 1734 WSW | 256 0.00 27.13 - 0   0 90   10
Napa-North (Ranch 29) 5/31/26 83.3   7.0 1743 47.0   5.1 0533 50.7   0.8 100   0 27   5 1.8 14.1   1.1 1538 SSW | 213 0.00 25.63 0.152   0.015 434   6 40   20
Max   89.5 - 51.9 - 52.8 100 34 2.7 18.3 - - 0.00 32.79 0.236 741 -
Avg   - - - - 49.6 - - 2.0 - - - - - - - -
Min   82.8 - 43.5 - 46.3 76 23 1.1 11.4 - - 0.00 24.03 0.152 0 -

Southern Napa County

22 Stations

Daily Data | America/Los_Angeles
as of 6/1/26 4:18 PM PDT
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Station Date Daily Max Temp (°F) Time of Max Temp Daily Min Temp (°F) Time of Min Temp Dew Pt (°F) Daily Max RH (%) Daily Min RH (%) Wind Spd (mph) Daily Max Wind (mph) Time of Max Wind Max Wind Dir (°) Daily Rain (In) Season Precip (In) Daily ETo (in) Daily Solar Rad (Cal/cm2) Powdery Mildew Stress (pts)
Mt. Veeder 5/31/26 79.6   9.3 1456 56.4   10.5 0550 47.1   1.0 68   32 36   2 1.8 15.3   2.5 1511 S | 190 0.00 34.60 0.204   0.048 671   120 30   20
Mount George (Napa East) 5/31/26 82.7   6.7 1531 45.2   4.1 0517 49.3   1.3 96   2 30   5 1.5 11.0   0.4 1815 SE | 140 0.00 17.28 0.215   0.045 700   105 20   20
Napa-East (Palmaz 300') 5/31/26 86.8   8.2 1525 46.7   3.2 0504 49.4   1.0 100   7 28   6 2.1 12.1   0.5 1801 SSE | 150 0.00 23.52 0.193   0.023 574   16 10   10
Napa-East (Palmaz 1200') 5/29/26 65.2   1.9 1609 48.2   1.2 2345 45.6   0.6 100   0 29   23 2.1 13.0   3.9 1512 NW | 320 - - 0.146   0.006 558   22 20   10
Napa-East (Palmaz 1400') 5/31/26 79.0   7.7 1515 45.2   1.9 0536 49.0   0.3 100   0 36   4 2.2 13.8   0.6 1550 SW | 224 0.00 31.03 0.212   0.043 693   63 30   20
Wooden Valley 5/31/26 81.5   7.1 1531 48.0   0.1 0431 49.1   0.3 93   2 31   2 2.7 16.4   0.6 1744 SW | 218 0.00 29.46 0.228   0.031 702   7 40   20
Napa-West Upper (Truchard) 5/31/26 84.7   7.4 1601 49.2   0.2 0605 50.1   37.1 100   0 26   26 3.0 17.6   1.0 1602 S | 184 0.00 24.70 0.233   0.045 702   101 40   20
Napa-West Lower (Truchard) 5/31/26 87.1   7.6 1558 41.9   3.9 0526 48.2   1.6 100   5 25   6 - - - - - - - - 20   10
Napa-South (Toyon Farms) 5/31/26 84.5   7.5 1611 48.9   2.2 0607 52.5   0.1 100   0 33   10 2.9 15.3   0.2 1709 SW | 222 0.00 18.70 0.130   0.021 352   4 20   20
Toyon Remote 1 5/31/26 88.3   8.1 1635 42.1   4.1 0503 - - - - - - - - - - - -
Toyon Remote 2 5/31/26 84.6   7.9 1610 44.2   4.5 0500 - - - - - - - - - - - -
Toyon Remote 3 5/31/26 88.3   8.5 1628 45.0   3.7 0522 - - - - - - - - - - - -
Dealy Lane (Ranch 80) 5/31/26 85.1   7.6 1603 47.8   3.1 0546 48.4   1.3 94   0 24   9 2.6 14.9   1.8 1437 SSE | 147 0.00 23.81 0.220   0.043 700   96 50   20
Carneros (Saintsbury) 5/31/26 85.0   9.1 1558 45.2   3.7 0506 49.0   0.9 100   0 27   8 3.9 17.2   0.1 1702 W | 260 0.00 8.94 - - 30   20
Suscol Lower (Ranch 35) 5/31/26 82.4   7.6 1505 47.6   3.8 0553 49.0   0.9 - - 4.2 15.3   1.3 1644 SSW | 202 0.00 23.25 0.214   0.052 637   108 30   20
Suscol Mtn (Ranch 93) 5/31/26 85.9   9.6 1520 50.6   1.3 0417 48.9   1.7 88   12 30   6 3.5 16.4   0.1 1522 NW | 318 0.00 19.27 - - 40   20
Suscol Upper (Ranch 92) 5/31/26 81.2   8.1 1518 50.0   0.2 0429 48.6   0.1 90   10 31   28 0.0 11.4   3.3 1840 SW | 236 0.00 22.76 - - 30   20
Stanly (Ranch 45) 5/31/26 83.6   5.9 1532 43.3   7.5 0512 49.6   0.8 96   4 25   4 4.8 16.5   0.4 1609 SSW | 212 0.00 22.51 0.252   0.056 763   118 50   20
Carneros Upper (Ranch 81) 5/31/26 83.4   7.5 1515 51.1   0.4 0455 47.9   10.0 - - 5.1 25.1   3.3 1824 W | 260 - - - - 30   20
Carneros (Mitsuko) 5/31/26 83.9   7.7 1620 41.7   3.2 0509 - - - - - - - - - - - 30   20
Carneros Lower (Ranch 81) 5/31/26 86.7   6.9 1550 44.9   4.0 0452 47.3   3.2 100   6 0   33 1.4 12.8   0.1 1509 S | 174 0.00 19.55 0.194   0.036 632   91 30   20
Carneros (Milton Rd) 5/31/26 81.2   5.4 1445 43.8   3.7 0444 49.1   1.1 95   2 30   4 - - - - 0.00 18.07 - - 30   20
Max   88.3 - 56.4 - 52.5 100 36 5.1 25.1 - - 0.00 34.60 0.252 763 -
Avg   - - - - 49.0 - - 2.8 - - - - - - - -
Min   79.0 - 41.7 - 47.1 68 0 0.0 11.0 - - 0.00 8.94 0.130 352 -