Monthly Climate Summary

September 2026 Summary

Patchy Fog 49°F

This monthly climate summary highlights temperature and precipitation trends, degree day totals, climate activity summaries, wind statistics, all-time monthly records, and the broader climate context. Use filters below to select a month and year, or view the latest summary directly.

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

62.4°F

Normal: 63.6°F   
Departure: -1.2°F

Total Precipitation

4.29 in

Normal: 3.73 in   
Departure: +0.56 in

Total Snowfall

0.0 in

Normal: 0.0 in   
Departure: +0.0 in

Warmest Day

81°F

September 3rd

Coldest Day

40°F

September 24th

Wettest Day

1.11 in

September 1st

Snowiest Day

0.0 in

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Temperature and Precipitation Summary

Temperature and Precipitation Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st scattered-thunderstorms 70°F 64°F 1.11 in 0.0 in
2nd rain-shower 69°F 62°F 0.03 in 0.0 in
3rd rain-shower 81°F 64°F 0.05 in 0.0 in
4th mostly-sunny 80°F 61°F 0.00 in 0.0 in
5th mostly-cloudy 74°F 61°F 0.00 in 0.0 in
6th partly-cloudy 72°F 55°F 0.00 in 0.0 in
7th mostly-sunny 78°F 49°F 0.00 in 0.0 in
8th mostly-sunny 77°F 53°F 0.00 in 0.0 in
9th light-rain 76°F 59°F 0.14 in 0.0 in
10th rain-shower 79°F 63°F 0.12 in 0.0 in
11th mostly-sunny 73°F 56°F 0.00 in 0.0 in
12th rain-shower 74°F 48°F 0.02 in 0.0 in
13th scattered-thunderstorms 74°F 62°F 0.58 in 0.0 in
14th sunny 69°F 52°F 0.00 in 0.0 in
15th mostly-cloudy 68°F 45°F 0.00 in 0.0 in
16th overcast 73°F 57°F 0.00 in 0.0 in
17th light-rain 71°F 64°F 0.42 in 0.0 in
18th partly-cloudy 75°F 60°F 0.00 in 0.0 in
19th mostly-cloudy 63°F 48°F 0.00 in 0.0 in
20th rain 61°F 54°F 0.47 in 0.0 in
21st rain-shower 62°F 51°F 0.01 in 0.0 in
22nd mostly-cloudy 64°F 49°F 0.00 in 0.0 in
23rd sunny 66°F 44°F 0.00 in 0.0 in
24th sunny 66°F 40°F 0.00 in 0.0 in
25th mostly-sunny 72°F 44°F 0.00 in 0.0 in
26th light-rain 63°F 56°F 0.21 in 0.0 in
27th light-rain 60°F 56°F 0.54 in 0.0 in
28th light-rain 59°F 56°F 0.55 in 0.0 in
29th drizzle 61°F 57°F 0.04 in 0.0 in
30th mostly-cloudy 67°F 57°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 Flurries Sleet Rain & Snow Wintry Mix Sct. Thunderstorm Thunderstorm Haze

Degree Day Summary

Heating and cooling degree days (base 65°F)

Heating Degree Days

112.5

Normal: 66.0   
Departure: +46.5

Cooling Degree Days

34.5

Normal: 23.0   
Departure: +11.5

Climate Activity Summary

Key temperature and precipitation patterns for the month

Days at or
Above 90°F

0

Days Above Freezing

30

Days That Stayed Below Freezing

0

Freezing Nights (Low Below 32°F)

0

Days with Precipitation

14

Days with
Snowfall

0

Wind Summary

Monthly wind averages, peak gusts, and dominant direction

Average Wind Speed

1.0 mph

Peak Wind Gust

24 mph

Dominant Wind Direction

N

September All-time Records

Highest and lowest observed extremes for September

Warmest Day

100°F

September 2nd, 1953

Coldest Day

24°F

September 27th, 1947

Wettest Day

5.60 in

September 16th, 1999

Snowiest Day

0.0 in

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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, NY.