Weather in Gaithersburg in September

The weather in Gaithersburg in September varies radically. Daytime is relatively hot since temperatures get higher than 27 degrees, while the nights are much colder and there are no more than 13 degrees. Therefore, it is recommended to pack for both warm and chilly conditions
Avg Temp
13° - 27°
Avg Rainy Days
14
Avg Dry Days
16
Avg Snow Days
0
Full weather report for today ››

Weather forecast for the next 14 days ››

Weather Facts - Gaithersburg in September

* The warmest temperature recorded in in September is 37°C
* The coldest temperature recorded in Gaithersburg in September is 1°C
* The average rainfall in Gaithersburg in September is 113 mm

Yearly Average for Gaithersburg

Max Temp
Min Temp
Rainy Days
Jan.
8°
(-4°)
15
Feb.
9°
(-4°)
12
March
14°
0°
16
April
21°
5°
16
May
25°
10°
17
June
29°
16°
16
July
31°
18°
17
August
31°
18°
14
Sep.
27°
13°
14
Oct.
21°
6°
12
Nov.
15°
2°
14
Dec.
9°
(-3°)
14

Average Temperature in Gaithersburg