Monthly Climate Summary

May 2021 Summary

Light Snow 34°F

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

Monthly Climate Summary

Observed averages, totals, and departures from normal

Average Temperature

58.3°F

Normal: 59.7°F
Departure: -1.4°F

Total Precipitation

3.51 in

Normal: 3.41 in
Departure: + 0.10 in

Total Snowfall

0.0 in

Normal: 0.1 in
Departure: -0.1 in

Warmest Day

89°F

May 26th

Coldest Day

35°F

May 7th

Wettest Day

0.80 in

May 30th

Snowiest Day

0.0 in

----

May 2021 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st Mostly Sunny 56°F 37°F 0.00 in 0.0 in
2nd Rain Shower 72°F 44°F 0.24 in 0.0 in
3rd Rain Shower 67°F 48°F 0.14 in 0.0 in
4th Rain 62°F 46°F 0.56 in 0.0 in
5th Rain 56°F 48°F 0.43 in 0.0 in
6th Mostly Sunny 61°F 44°F 0.00 in 0.0 in
7th Mostly Cloudy 66°F 35°F 0.00 in 0.0 in
8th Overcast 58°F 46°F 0.00 in 0.0 in
9th Rain Shower 63°F 43°F 0.03 in 0.0 in
10th Rain Shower 59°F 45°F 0.28 in 0.0 in
11th Mostly Cloudy 58°F 39°F 0.00 in 0.0 in
12th Mostly Cloudy 64°F 42°F 0.00 in 0.0 in
13th Partly Cloudy 70°F 37°F 0.00 in 0.0 in
14th Mostly Sunny 75°F 41°F 0.00 in 0.0 in
15th Partly Cloudy 75°F 43°F 0.00 in 0.0 in
16th Partly Cloudy 78°F 50°F 0.00 in 0.0 in
17th Sunny 78°F 45°F 0.00 in 0.0 in
18th Partly Cloudy 80°F 52°F 0.00 in 0.0 in
19th Sunny 84°F 52°F 0.00 in 0.0 in
20th Mostly Sunny 85°F 57°F 0.00 in 0.0 in
21st Mostly Cloudy 86°F 60°F 0.00 in 0.0 in
22nd Mostly Cloudy 86°F 62°F 0.00 in 0.0 in
23rd Mostly Cloudy 80°F 55°F 0.00 in 0.0 in
24th Partly Cloudy 73°F 46°F 0.00 in 0.0 in
25th Partly Cloudy 78°F 50°F 0.00 in 0.0 in
26th Rain Shower 89°F 64°F 0.11 in 0.0 in
27th Mostly Sunny 71°F 55°F 0.00 in 0.0 in
28th Rain 55°F 41°F 0.64 in 0.0 in
29th Rain 52°F 41°F 0.28 in 0.0 in
30th Rain 50°F 46°F 0.80 in 0.0 in
31st Mostly Cloudy 66°F 48°F 0.00 in 0.0 in
Legend and Icon Key
Warmest High
Coldest Low
Wettest Day
Snowiest Day
Sunny Mostly Sunny Partly Cloudy Mostly Cloudy Overcast Rain Light Rain Rain Shower Drizzle Freezing Rain Snow Light Snow Snow Shower Snow Flurries Sleet Rain & Snow Wintry Mix Thunderstorm Haze

Degree Day Summary

Heating and cooling degree days (base 65°F)

Heating Degree Days

248.5

Normal: 163.0
Departure: + 85.5

Cooling Degree Days

41.0

Normal: 0.0
Departure: + 41.0

Climate Activity Summary

Key temperature and precipitation patterns for the month

Days at or
Above 90°F

0

Days Above Freezing

31

Days That Stayed Below Freezing

0

Freezing Nights (Low Below 32°F)

0

Days with Precipitation

10

Days with
Snowfall

0

Wind Summary

Monthly wind averages, peak gusts, and dominant direction

Average Wind Speed

1.6 mph

Peak Wind Gust

31 mph

Dominant Wind Direction

N

All-time Monthly Records

Highest and lowest observed extremes for this month

Warmest Day

97°F

May 22nd, 1911

Coldest Day

26°F

May 8th, 1968

Wettest Day

2.17 in

May 4th, 1893

Snowiest Day

5.0 in

May 10th, 1945

Climate Context

How this month compares to typical conditions

Monthly climate summaries compare observed weather to long‑term normals. Positive temperature departures indicate warmer‑than‑normal conditions, while negative departures reflect cooler‑than‑normal patterns. Precipitation and snowfall departures help highlight unusually wet, dry, or snowy months across Colonie.