Storm surge flooding and tropical storm conditions are expected in the Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Warnings are in effect. Tropical storm conditions are possible along the eastern shore of Virginia Thursday. Hurricane Erin will continue to produce life-threatening surf and rip currents along much of the east coast of the U.S. this week. 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 |