Monthly Climate Summary

September 2009 Summary

Light Snow 25°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

59.2°F

Normal: 63.6°F
Departure: -4.4°F

Total Precipitation

1.74 in

Normal: 3.73 in
Departure: -1.99 in

Total Snowfall

0.0 in

Normal: 0.0 in
Departure: + 0 in

September 2009 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st Sunny 73°F 45°F 0.00 in 0.0 in
2nd Sunny 77°F 47°F 0.00 in 0.0 in
3rd Mostly Sunny 79°F 49°F 0.00 in 0.0 in
4th Mostly Sunny 81°F 52°F 0.00 in 0.0 in
5th Rain Shower 78°F 56°F 0.00 in 0.0 in
6th Sunny 73°F 50°F 0.00 in 0.0 in
7th Overcast 67°F 56°F 0.00 in 0.0 in
8th Partly Cloudy 76°F 52°F 0.00 in 0.0 in
9th Mostly Cloudy 74°F 56°F 0.00 in 0.0 in
10th Partly Cloudy 69°F 45°F 0.00 in 0.0 in
11th Rain 58°F 43°F 0.38 in 0.0 in
12th Drizzle 69°F 58°F 0.03 in 0.0 in
13th Rain Shower 73°F 57°F 0.01 in 0.0 in
14th Partly Cloudy 73°F 54°F 0.00 in 0.0 in
15th Mostly Sunny 74°F 52°F 0.00 in 0.0 in
16th Mostly Cloudy 65°F 51°F 0.00 in 0.0 in
17th Mostly Cloudy 62°F 46°F 0.00 in 0.0 in
18th Partly Cloudy 71°F 49°F 0.00 in 0.0 in
19th Sunny 66°F 42°F 0.00 in 0.0 in
20th Sunny 68°F 36°F 0.00 in 0.0 in
21st Partly Cloudy 71°F 39°F 0.00 in 0.0 in
22nd Overcast 71°F 55°F 0.00 in 0.0 in
23rd Rain Shower 79°F 64°F 0.03 in 0.0 in
24th Rain Shower 72°F 53°F 0.01 in 0.0 in
25th Mostly Sunny 59°F 42°F 0.00 in 0.0 in
26th Rain Shower 54°F 35°F 0.03 in 0.0 in
27th Thunderstorm 64°F 50°F 1.07 in 0.0 in
28th Rain Shower 67°F 51°F 0.03 in 0.0 in
29th Rain Shower 60°F 48°F 0.15 in 0.0 in
30th Rain Shower 52°F 41°F 0.00 in 0.0 in
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

185.5

Normal: 66.0
Departure: + 119.5

Cooling Degree Days

10.0

Normal: 23.0
Departure: -13.0

All-time Monthly Records

Highest and lowest observed extremes for this month

High Temperature

100°F

Set in 1953

Low Temperature

24°F

Set in 1947

Precipitation

5.60 in

Set in 1999

Snowfall

0.0 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.