Annual Climate Summary

2021 Summary

Light Snow 34°F

Data is available from 2005 to present. The latest summary is available the first week of each month.

Annual Climate Summary

Observed averages, totals, and departures from normal

Average Temperature

50.4°F

Normal: 49.5°F
Departure: + 0.9°F

Total Precipitation

49.22 in

Normal: 40.68 in
Departure: + 8.54 in

Season Snowfall

55.6 in

Normal: 59.2 in
Departure: -3.6 in

Warmest Day

93°F

June 28th

Coldest Day

-2°F

January 31st

Wettest Day

2.01 in

October 4th

Snowiest Day

6.0 in

March 23rd

2021 Monthly Summary
Month Average Temp Average High Average Low Total Precip Total Snow
January 26.3°F 32.4°F 20.1°F 1.75 in 10.7 in
February 26.4°F 34.1°F 18.6°F 1.69 in 11.5 in
March 37.5°F 48.7°F 26.3°F 1.90 in 6.0 in
April 49.3°F 60.4°F 38.2°F 4.75 in 0.5 in
May 58.3°F 69.5°F 47.2°F 3.51 in 0.0 in
June 70.4°F 80.9°F 59.9°F 3.72 in 0.0 in
July 70.0°F 77.8°F 62.1°F 9.24 in 0.0 in
August 72.9°F 81.3°F 64.4°F 4.05 in 0.0 in
September 64.0°F 72.7°F 55.3°F 5.98 in 0.0 in
October 55.0°F 62.7°F 47.3°F 7.57 in 0.0 in
November 38.2°F 47.4°F 29.0°F 2.44 in 1.0 in
December 35.1°F 41.5°F 28.7°F 2.62 in 3.5 in

Degree Day Summary

Heating and cooling degree days (base 65°F)

Heating Degree Days

6,004.5

Normal: 6,194.0
Departure: -189.5

Cooling Degree Days

680.5

Normal: 578.0
Departure: + 102.5

Climate Activity Summary

Key temperature and precipitation patterns for the year

Days at or
Above 90°F

6

Days Above Freezing

331

Days That Stayed Below Freezing

34

Freezing Nights (Low Below 32°F)

127

Days with Precipitation

151

Days with
Snowfall

23

Major 3-Day Climate Events

The year's most significant multi‑day weather events

Warmest 3-Day Stretch

81.8°F

June 28th - June 30th

Coldest 3‑Day Stretch

9.8°F

January 29th - January 31st

Heaviest 3‑Day Precipitation

2.57 in

October 25th - October 27th

Snowiest 3‑Day Storm

6.5 in

January 31st - February 2nd

Top 3 Extremes of the Year

Warmest, coldest, wettest, and snowiest days

Warmest Days

  1. 93°F on June 28th
  2. 92°F on June 7th
  3. 92°F on June 29th

Coldest Days

  1. -2°F on January 31st
  2. 1°F on January 30th
  3. 2°F on January 29th

Wettest Days

  1. 2.01 in on October 4th
  2. 1.80 in on April 29th
  3. 1.65 in on July 11th

Snowiest Days

  1. 6.0 in on March 23rd
  2. 4.0 in on February 1st
  3. 3.5 in on January 26th

Wind Summary

Annual wind averages, peak gusts, and dominant direction

Average Wind Speed

1.4 mph

Peak Wind Gust

39 mph

Dominant Wind Direction

ESE

Climate Context

How this year compares to typical conditions

Annual climate summaries compare observed conditions to long‑term normals. Positive temperature departures signal warmer‑than‑normal patterns, while negative departures reflect cooler periods. Precipitation and snowfall departures highlight unusually wet, dry, or snowy years across Colonie.