Monthly Climate Summary

September 2015 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

67.3°F

Normal: 63.6°F
Departure: + 3.7°F

Total Precipitation

5.81 in

Normal: 3.73 in
Departure: + 2.08 in

Total Snowfall

0.0 in

Normal: 0.0 in
Departure: + 0.0 in

Warmest Day

91°F

September 8th

Coldest Day

43°F

September 27th

Wettest Day

2.55 in

September 30th

Snowiest Day

0.0 in

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September 2015 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st Mostly Sunny 86°F 64°F 0.00 in 0.0 in
2nd Sunny 85°F 62°F 0.00 in 0.0 in
3rd Thunderstorm 88°F 65°F 0.38 in 0.0 in
4th Mostly Cloudy 81°F 63°F 0.00 in 0.0 in
5th Sunny 82°F 59°F 0.00 in 0.0 in
6th Sunny 86°F 58°F 0.00 in 0.0 in
7th Partly Cloudy 89°F 64°F 0.00 in 0.0 in
8th Mostly Cloudy 91°F 68°F 0.00 in 0.0 in
9th Rain Shower 88°F 70°F 0.04 in 0.0 in
10th Rain 71°F 65°F 0.13 in 0.0 in
11th Rain Shower 78°F 63°F 0.16 in 0.0 in
12th Rain 75°F 57°F 1.06 in 0.0 in
13th Rain Shower 75°F 59°F 0.47 in 0.0 in
14th Rain Shower 69°F 54°F 0.02 in 0.0 in
15th Sunny 78°F 53°F 0.00 in 0.0 in
16th Mostly Sunny 80°F 55°F 0.00 in 0.0 in
17th Sunny 83°F 57°F 0.00 in 0.0 in
18th Sunny 82°F 57°F 0.00 in 0.0 in
19th Mostly Sunny 81°F 60°F 0.00 in 0.0 in
20th Rain Shower 71°F 53°F 0.11 in 0.0 in
21st Mostly Cloudy 65°F 45°F 0.00 in 0.0 in
22nd Mostly Cloudy 67°F 51°F 0.00 in 0.0 in
23rd Sunny 73°F 45°F 0.00 in 0.0 in
24th Mostly Sunny 75°F 51°F 0.00 in 0.0 in
25th Partly Cloudy 71°F 48°F 0.00 in 0.0 in
26th Partly Cloudy 69°F 51°F 0.00 in 0.0 in
27th Mostly Sunny 69°F 43°F 0.00 in 0.0 in
28th Mostly Cloudy 75°F 52°F 0.00 in 0.0 in
29th Rain 75°F 66°F 0.89 in 0.0 in
30th Rain 69°F 52°F 2.55 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

56.0

Normal: 66.0
Departure: -10.0

Cooling Degree Days

124.5

Normal: 23.0
Departure: + 101.5

Climate Activity Summary

Key temperature and precipitation patterns for the month

Days at or
Above 90°F

1

Days Above Freezing

30

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

0.5 mph

Peak Wind Gust

22 mph

Dominant Wind Direction

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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.