Monthly Climate Summary

September 2018 Summary

Mostly Clear 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

66.3°F

Normal: 63.6°F
Departure: + 2.7°F

Total Precipitation

3.73 in

Normal: 3.73 in
Departure: + 1.92 in

Total Snowfall

0.0 in

Normal: 0.0 in
Departure: + 0 in

September 2018 Daily Summary
Day Weather High Temperature Low Temperature Precipitation Snowfall
1st mostly cloudy 77°F 65°F 0.00 in 0.0 in
2nd partly cloudy 81°F 65°F 0.00 in 0.0 in
3rd mostly cloudy 92°F 72°F 0.00 in 0.0 in
4th partly cloudy 87°F 69°F 0.00 in 0.0 in
5th mostly cloudy 91°F 65°F 0.00 in 0.0 in
6th mostly cloudy 90°F 71°F 0.00 in 0.0 in
7th mostly cloudy 76°F 61°F 0.00 in 0.0 in
8th Overcast 64°F 52°F 0.00 in 0.0 in
9th Overcast 62°F 48°F 0.00 in 0.0 in
10th Rain 59°F 51°F 1.00 in 0.0 in
11th Rain 68°F 57°F 0.15 in 0.0 in
12th Rain 73°F 65°F 0.03 in 0.0 in
13th Rain Shower 79°F 68°F 0.01 in 0.0 in
14th mostly cloudy 77°F 66°F 0.00 in 0.0 in
15th mostly cloudy 82°F 66°F 0.00 in 0.0 in
16th Sunny 87°F 63°F 0.00 in 0.0 in
17th Rain Shower 80°F 67°F 0.09 in 0.0 in
18th Rain 79°F 68°F 2.21 in 0.0 in
19th mostly cloudy 74°F 61°F 0.00 in 0.0 in
20th mostly cloudy 71°F 57°F 0.00 in 0.0 in
21st Rain Shower 70°F 64°F 0.01 in 0.0 in
22nd Rain Shower 69°F 52°F 0.01 in 0.0 in
23rd mostly cloudy 65°F 44°F 0.00 in 0.0 in
24th partly cloudy 64°F 46°F 0.00 in 0.0 in
25th Rain 61°F 51°F 1.15 in 0.0 in
26th Rain Shower 75°F 60°F 0.31 in 0.0 in
27th Rain Shower 66°F 51°F 0.06 in 0.0 in
28th Rain 61°F 52°F 0.62 in 0.0 in
29th mostly cloudy 66°F 48°F 0.00 in 0.0 in
30th mostly cloudy 64°F 43°F 0.00 in 0.0 in

Degree Day Summary

Heating and cooling degree days (base 65°F)

Heating Degree Days

99.0

Normal: 66.0
Departure: + 33.0

Cooling Degree Days

138.0

Normal: 23.0
Departure: + 115.0

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.