Heavy rainfall and flooding concerns remain for today across Central Texas and the Hill Country, with scattered thunderstorms expected this afternoon and evening. Tropical Storm Chantal has formed and will bring heavy rainfall and flooding concerns to portions of the coastal Carolinas. Life-threatening surf and rip currents are expected from the Southeast to Mid-Atlantic. Read More >
New 30 Year Climate Normals (1991 - 2020)
The 30-year normals are updated once every 10 years by the National Centers for Environmental Information (NCEI). Some of the popular variables calculated include: temperature, precipitation and snowfall that are listed here for our primary climate stations of Buffalo, Rochester and Watertown. The data displayed here is from NCEI which is the official source of climate normals. Further information on the new climate normals, including additional locations across the country can be found from NCEI at this weblink.
Key | ||||||||||||||||
Warmer | Increase | Old = 1981 - 2010 | ||||||||||||||
Cooler | Decrease | New = 1991 - 2020 | ||||||||||||||
No Change | No Change | |||||||||||||||
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BUFFALO | ||||||||||||||||
Max Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 31.2 | 33.3 | 42.0 | 55.0 | 66.5 | 75.3 | 79.9 | 78.4 | 71.1 | 59.0 | 47.6 | 36.1 | 56.4 | ||
New | 32.1 | 33.3 | 41.8 | 54.7 | 67.4 | 75.6 | 80.2 | 79.0 | 72.3 | 59.6 | 47.8 | 37.2 | 56.8 | |||
0.9 | 0.0 | -0.2 | -0.3 | 0.9 | 0.3 | 0.3 | 0.6 | 1.2 | 0.6 | 0.2 | 1.1 | 0.4 | ||||
Min Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 18.5 | 19.2 | 26.0 | 36.8 | 47.4 | 57.3 | 62.3 | 60.8 | 53.4 | 42.7 | 33.9 | 24.1 | 40.3 | ||
New | 19.0 | 19.5 | 26.4 | 36.5 | 48.3 | 58.1 | 63.1 | 61.7 | 54.5 | 43.9 | 34.2 | 25.6 | 40.9 | |||
0.5 | 0.3 | 0.4 | -0.3 | 0.9 | 0.8 | 0.8 | 0.9 | 1.1 | 1.2 | 0.3 | 1.5 | 0.6 | ||||
Mean Temp | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 24.9 | 26.3 | 34.0 | 45.9 | 56.9 | 66.3 | 71.1 | 69.6 | 62.2 | 50.8 | 40.7 | 30.1 | 48.3 | ||
New | 25.5 | 26.4 | 34.1 | 45.6 | 57.9 | 66.9 | 71.7 | 70.4 | 63.4 | 51.7 | 41.0 | 31.4 | 48.8 | |||
0.6 | 0.1 | 0.1 | -0.3 | 1.0 | 0.6 | 0.6 | 0.8 | 1.2 | 0.9 | 0.3 | 1.3 | 0.5 | ||||
Precipitation | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
(inches) | Old | 3.18 | 2.49 | 2.87 | 3.01 | 3.46 | 3.66 | 3.23 | 3.26 | 3.90 | 3.52 | 4.01 | 3.89 | 40.48 | ||
New | 3.35 | 2.49 | 2.89 | 3.37 | 3.37 | 3.37 | 3.23 | 3.23 | 4.10 | 4.03 | 3.50 | 3.75 | 40.68 | |||
0.17 | 0.00 | 0.02 | 0.36 | -0.09 | -0.29 | 0.00 | -0.03 | 0.20 | 0.51 | -0.51 | -0.14 | 0.20 | ||||
Snow | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
(inches) | Old | 25.3 | 17.3 | 12.9 | 2.7 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | 7.9 | 27.4 | 94.7 | ||
New | 26.7 | 18.1 | 14.1 | 2.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.9 | 7.8 | 25.3 | 95.4 | |||
1.4 | 0.8 | 1.2 | -0.2 | -0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | -0.1 | -2.1 | 0.7 | ||||
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Rochester | ||||||||||||||||
Max Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 31.7 | 34.1 | 42.8 | 56.0 | 67.6 | 76.6 | 81.0 | 79.1 | 71.6 | 59.6 | 48.0 | 36.5 | 57.2 | ||
New | 33.4 | 35.2 | 43.6 | 56.6 | 69.4 | 77.9 | 82.5 | 80.5 | 73.6 | 61.2 | 49.1 | 38.5 | 58.4 | |||
1.7 | 1.1 | 0.8 | 0.6 | 1.8 | 1.3 | 1.5 | 1.4 | 2.0 | 1.6 | 1.1 | 2.0 | 1.2 | ||||
Min Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 17.6 | 18.6 | 25.8 | 36.6 | 46.3 | 55.9 | 60.7 | 59.5 | 52.0 | 41.5 | 33.0 | 23.5 | 39.3 | ||
New | 19.0 | 19.6 | 26.8 | 37.1 | 48.2 | 57.4 | 62.2 | 61.0 | 53.6 | 43.3 | 34.0 | 25.4 | 40.6 | |||
1.4 | 1.0 | 1.0 | 0.5 | 1.9 | 1.5 | 1.5 | 1.5 | 1.6 | 1.8 | 1.0 | 1.9 | 1.3 | ||||
Mean Temp | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 24.7 | 26.4 | 34.3 | 46.3 | 57.0 | 66.2 | 70.8 | 69.3 | 61.8 | 50.6 | 40.5 | 30.0 | 48.2 | ||
New | 26.2 | 27.4 | 35.2 | 46.8 | 58.8 | 67.6 | 72.3 | 70.7 | 63.6 | 52.2 | 41.5 | 32.0 | 49.5 | |||
1.5 | 1.0 | 0.9 | 0.5 | 1.8 | 1.4 | 1.5 | 1.4 | 1.8 | 1.6 | 1.0 | 2.0 | 1.3 | ||||
Precipitation | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
(inches) | Old | 2.41 | 1.95 | 2.50 | 2.73 | 2.87 | 3.34 | 3.33 | 3.47 | 3.38 | 2.72 | 2.94 | 2.63 | 34.27 | ||
New | 2.55 | 2.13 | 2.49 | 2.99 | 2.86 | 3.37 | 3.56 | 3.31 | 3.18 | 3.22 | 2.76 | 2.67 | 35.09 | |||
0.14 | 0.18 | -0.01 | 0.26 | -0.01 | 0.03 | 0.23 | -0.16 | -0.20 | 0.50 | -0.18 | 0.04 | 0.82 | ||||
Snow | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
(inches) | Old | 28.2 | 21.5 | 16.3 | 3.9 | 0.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 7.3 | 21.8 | 99.5 | ||
New | 27.4 | 23.1 | 17.9 | 3.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 8.1 | 22.3 | 102.0 | |||
-0.8 | 1.6 | 1.6 | -0.9 | -0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.8 | 0.5 | 2.5 | ||||
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Watertown | ||||||||||||||||
Max Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 29.3 | 31.7 | 40.7 | 54.5 | 65.8 | 74.4 | 79.2 | 78.0 | 70.4 | 58.2 | 46.8 | 35.0 | 55.3 | ||
New | 29.8 | 31.4 | 40.0 | 53.7 | 66.2 | 74.5 | 79.2 | 78.2 | 71.2 | 58.4 | 46.6 | 35.5 | 55.4 | |||
0.5 | -0.3 | -0.7 | -0.8 | 0.4 | 0.1 | 0.0 | 0.2 | 0.8 | 0.2 | -0.2 | 0.5 | 0.1 | ||||
Min Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 9.4 | 10.4 | 20.5 | 33.2 | 43.4 | 52.6 | 58.1 | 56.3 | 48.5 | 38.3 | 29.7 | 17.8 | 34.9 | ||
New | 10.0 | 10.7 | 20.7 | 32.5 | 43.7 | 53.1 | 58.8 | 56.7 | 48.8 | 39.2 | 29.5 | 19.0 | 35.2 | |||
0.6 | 0.3 | 0.2 | -0.7 | 0.3 | 0.5 | 0.7 | 0.4 | 0.3 | 0.9 | -0.2 | 1.2 | 0.3 | ||||
Mean Temp | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
°F | Old | 19.4 | 21.1 | 30.6 | 43.9 | 54.6 | 63.5 | 68.6 | 67.1 | 59.5 | 48.3 | 38.3 | 26.4 | 45.1 | ||
New | 19.9 | 21.1 | 30.4 | 43.1 | 55.0 | 63.8 | 69.0 | 67.5 | 60.0 | 48.8 | 38.0 | 27.3 | 45.3 | |||
0.5 | 0.0 | -0.2 | -0.8 | 0.4 | 0.3 | 0.4 | 0.4 | 0.5 | 0.5 | -0.3 | 0.9 | 0.2 | ||||
Precipitation | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
(inches) | Old | 2.67 | 2.22 | 2.30 | 2.90 | 3.07 | 2.85 | 2.65 | 3.15 | 3.72 | 3.65 | 3.76 | 3.15 | 36.09 | ||
New | 2.86 | 2.18 | 2.37 | 3.07 | 2.97 | 3.09 | 3.01 | 3.20 | 3.56 | 4.22 | 3.40 | 3.14 | 37.07 | |||
0.19 | -0.04 | 0.07 | 0.17 | -0.10 | 0.24 | 0.36 | 0.05 | -0.16 | 0.57 | -0.36 | -0.01 | 0.98 | ||||
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Key | ||||||||||||||||
Warmer | Increase | Old = 1981 - 2010 | ||||||||||||||
Cooler | Decrease | New = 1991 - 2020 | ||||||||||||||
No Change | No Change |