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Monthly
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Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Chelmsford, MA
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January
Average Temperature
High
1°
Feels -1
Low
-8°
Feels -12
Average Precipitation
8 Days
Rain amount
16.5mm
Snow amount
32.6cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
3°
13
6°
14
8°
15
5°
16
-3°
17
2°
18
3°
19
-1°
20
-4°
21
-6°
22
-4°
23
-2°
24
-4°
25
-6°
26
-4°
27
28
29
30
31
Forecast
Monday, January 12, 2026
Day
3°
Feels 0
Wind
18 km/h W
Gust
42 km/h
Humidity
33%
P.O.P
10%
Night
-3°
Feels -7
Wind
11 km/h SW
Gust
26 km/h
Humidity
80%
P.O.P
20%
Historical Averages
Jan 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.