Monthly Climate Summary

September 2020 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

63.1°F

Normal: 63.6°F
Departure: -0.5°F

Total Precipitation

3.00 in

Normal: 3.73 in
Departure: -0.73 in

Total Snowfall

0.0 in

Normal: 0.0 in
Departure: + 0.0 in

Warmest Day

83°F

September 8th

Coldest Day

37°F

September 20th

Wettest Day

1.56 in

September 30th

Snowiest Day

0.0 in

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September 2020 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st Overcast 76°F 62°F 0.00 in 0.0 in
2nd Rain 73°F 64°F 0.42 in 0.0 in
3rd Rain Shower 79°F 63°F 0.01 in 0.0 in
4th Mostly Sunny 75°F 57°F 0.00 in 0.0 in
5th Partly Cloudy 76°F 51°F 0.00 in 0.0 in
6th Mostly Sunny 77°F 60°F 0.00 in 0.0 in
7th Mostly Cloudy 78°F 58°F 0.00 in 0.0 in
8th Mostly Cloudy 83°F 63°F 0.00 in 0.0 in
9th Mostly Cloudy 83°F 63°F 0.00 in 0.0 in
10th Rain 77°F 64°F 0.08 in 0.0 in
11th Mostly Cloudy 68°F 51°F 0.00 in 0.0 in
12th Sunny 71°F 45°F 0.00 in 0.0 in
13th Rain Shower 75°F 53°F 0.00 in 0.0 in
14th Mostly Cloudy 71°F 51°F 0.00 in 0.0 in
15th Haze 63°F 43°F 0.00 in 0.0 in
16th Haze 70°F 47°F 0.00 in 0.0 in
17th Mostly Cloudy 72°F 52°F 0.01 in 0.0 in
18th Partly Cloudy 65°F 47°F 0.00 in 0.0 in
19th Mostly Sunny 59°F 38°F 0.00 in 0.0 in
20th Sunny 63°F 37°F 0.00 in 0.0 in
21st Sunny 63°F 37°F 0.00 in 0.0 in
22nd Sunny 67°F 37°F 0.00 in 0.0 in
23rd Partly Cloudy 72°F 53°F 0.00 in 0.0 in
24th Mostly Cloudy 73°F 52°F 0.00 in 0.0 in
25th Haze 79°F 56°F 0.00 in 0.0 in
26th Partly Cloudy 76°F 57°F 0.00 in 0.0 in
27th Mostly Cloudy 77°F 65°F 0.00 in 0.0 in
28th Rain Shower 76°F 68°F 0.19 in 0.0 in
29th Rain Shower 76°F 58°F 0.73 in 0.0 in
30th Rain Shower 64°F 55°F 1.56 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

119.5

Normal: 66.0
Departure: + 53.5

Cooling Degree Days

61.5

Normal: 23.0
Departure: + 38.5

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

7

Days with
Snowfall

0

Wind Summary

Monthly wind averages, peak gusts, and dominant direction

Average Wind Speed

0.6 mph

Peak Wind Gust

19 mph

Dominant Wind Direction

SE

All-time Monthly Records

Highest and lowest observed extremes for this month

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.