Monthly Climate Summary

September 2021 Summary

Snow Shower 32°F

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

Monthly Climate Summary

Observed averages, totals, and departures from normal

Average Temperature

64°F

Normal: 63.6°F
Departure: + 0.4°F

Total Precipitation

3.73 in

Normal: 3.73 in
Departure: + 2.25 in

Total Snowfall

0.0 in

Normal: 0.0 in
Departure: + 0 in

September 2021 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st Rain 67°F 57°F 1.43 in 0.0 in
2nd Rain 69°F 54°F 0.21 in 0.0 in
3rd mostly cloudy 70°F 54°F 0.00 in 0.0 in
4th partly cloudy 75°F 53°F 0.00 in 0.0 in
5th Rain Shower 69°F 59°F 0.09 in 0.0 in
6th Rain Shower 77°F 57°F 0.01 in 0.0 in
7th partly cloudy 74°F 54°F 0.00 in 0.0 in
8th Thunderstorm 81°F 60°F 0.50 in 0.0 in
9th Rain Shower 70°F 62°F 0.25 in 0.0 in
10th partly cloudy 70°F 54°F 0.00 in 0.0 in
11th partly cloudy 76°F 50°F 0.00 in 0.0 in
12th Overcast 77°F 58°F 0.06 in 0.0 in
13th Rain Shower 73°F 58°F 0.52 in 0.0 in
14th mostly cloudy 73°F 53°F 0.00 in 0.0 in
15th Thunderstorm 83°F 65°F 0.45 in 0.0 in
16th Rain Shower 74°F 58°F 0.19 in 0.0 in
17th mostly cloudy 75°F 65°F 0.00 in 0.0 in
18th mostly cloudy 82°F 62°F 0.00 in 0.0 in
19th Sunny 71°F 53°F 0.00 in 0.0 in
20th Sunny 75°F 47°F 0.00 in 0.0 in
21st partly cloudy 73°F 54°F 0.00 in 0.0 in
22nd Rain Shower 80°F 62°F 0.03 in 0.0 in
23rd Rain 80°F 67°F 0.63 in 0.0 in
24th Rain 72°F 53°F 1.57 in 0.0 in
25th partly cloudy 72°F 48°F 0.00 in 0.0 in
26th partly cloudy 68°F 51°F 0.00 in 0.0 in
27th Rain Shower 70°F 49°F 0.01 in 0.0 in
28th mostly cloudy 65°F 55°F 0.00 in 0.0 in
29th mostly cloudy 62°F 41°F 0.00 in 0.0 in
30th Rain Shower 58°F 47°F 0.03 in 0.0 in

Degree Day Summary

Heating and cooling degree days (base 65°F)

Heating Degree Days

77.5

Normal: 66.0
Departure: + 11.5

Cooling Degree Days

48.0

Normal: 23.0
Departure: + 25.0

All-time Monthly Records

Highest and lowest observed extremes for this month

Record High

100°F

Set in 1953

Record Low

24°F

Set in 1947

Record Precipitation

5.6 in

Set in 1999

Record Snowfall

0 in

Set in ----

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.