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Monthly weather forecast in Boulder
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
15
−1
−5
15 December, sun
−1
−5
Feels like
−7
646 mmHg
56%
6
m/s
W
15 December, Sunday. day, -1°; night, -5°; overcast
16
−1
−6
16 December, mon
−1
−6
Feels like
−6
645 mmHg
61%
5
m/s
W
16 December, Monday. day, -1°; night, -6°; partly cloudy
17
0
−4
17 December, tue
0
−4
Feels like
−5
644 mmHg
61%
4.8
m/s
W
17 December, Tuesday. day, 0°; night, -4°; clear
18
December
+13
+6
18 December, wed
+13
+6
Feels like
−6
627 mmHg
34%
13.2
m/s
W
Climate normal
0
−4
18 December, Wednesday. day, 13°; night, 6°; overcast
19
+14
−1
19 December, thu
+14
−1
Feels like
+1
629 mmHg
24%
6.6
m/s
W
Climate normal
+1
−4
19 December, Thursday. day, 14°; night, -1°; partly cloudy
20
+15
+4
20 December, fri
+15
+4
Feels like
+1
628 mmHg
20%
7.1
m/s
W
Climate normal
−2
−4
20 December, Friday. day, 15°; night, 4°; overcast
21
+16
+6
21 December, sat
+16
+6
Feels like
+1
628 mmHg
27%
5.1
m/s
W
Climate normal
−2
−6
21 December, Saturday. day, 16°; night, 6°; partly cloudy
22
+14
+4
22 December, sun
+14
+4
Feels like
+3
624 mmHg
33%
5.9
m/s
W
Climate normal
−3
−6
22 December, Sunday. day, 14°; night, 4°; overcast
23
+12
+2
23 December, mon
+12
+2
Feels like
+3
626 mmHg
49%
4.5
m/s
W
Climate normal
−2
−7
23 December, Monday. day, 12°; night, 2°; overcast
24
+12
+2
24 December, tue
+12
+2
Feels like
+1
624 mmHg
41%
4.1
m/s
W
Climate normal
−2
−6
24 December, Tuesday. day, 12°; night, 2°; partly cloudy
25
+8
0
25 December, wed
+8
0
Feels like
−2
622 mmHg
57%
6.1
m/s
W
Climate normal
−4
−7
25 December, Wednesday. day, 8°; night, 0°; sleet
26
+8
+1
26 December, thu
+8
+1
Feels like
−3
625 mmHg
48%
6.6
m/s
W
Climate normal
−3
−7
26 December, Thursday. day, 8°; night, 1°; partly cloudy
27
+7
−1
27 December, fri
+7
−1
Feels like
−4
622 mmHg
60%
7.6
m/s
W
Climate normal
−2
−5
27 December, Friday. day, 7°; night, -1°; light rain
28
+6
−2
28 December, sat
+6
−2
Feels like
−5
627 mmHg
56%
8
m/s
W
Climate normal
−1
−6
28 December, Saturday. day, 6°; night, -2°; partly cloudy
29
+12
+3
29 December, sun
+12
+3
Feels like
0
629 mmHg
56%
5.2
m/s
W
Climate normal
−4
−7
29 December, Sunday. day, 12°; night, 3°; overcast
30
+4
−8
30 December, mon
+4
−8
Feels like
−8
571 mmHg
84%
4.5
m/s
NE
Climate normal
+1
−9
30 December, Monday. day, 4°; night, -8°; light snow
31
−5
−9
31 December, tue
−5
−9
Feels like
−10
543 mmHg
96%
2.2
m/s
W
Climate normal
+1
−9
31 December, Tuesday. day, -5°; night, -9°; partly cloudy
1 January
−4
−5
1 January, wed
−4
−5
Feels like
−8
544 mmHg
97%
2.2
m/s
S
Climate normal
−3
−7
1 January, Wednesday. day, -4°; night, -5°; partly cloudy
2
−4
−10
2 January, thu
−4
−10
Feels like
−11
541 mmHg
95%
3.6
m/s
W
Climate normal
−1
−5
2 January, Thursday. day, -4°; night, -10°; light snow
3
−8
−15
3 January, fri
−8
−15
Feels like
−14
544 mmHg
93%
3.3
m/s
N
Climate normal
−1
−6
3 January, Friday. day, -8°; night, -15°; light snow
4
−5
−11
4 January, sat
−5
−11
Feels like
−14
546 mmHg
94%
4.7
m/s
W
Climate normal
−2
−6
4 January, Saturday. day, -5°; night, -11°; clear
5
−1
−5
5 January, sun
−1
−5
Feels like
−7
545 mmHg
97%
4.2
m/s
W
Climate normal
−1
−4
5 January, Sunday. day, -1°; night, -5°; partly cloudy
6
+1
−3
6 January, mon
+1
−3
Feels like
−5
545 mmHg
98%
3.7
m/s
W
Climate normal
−1
−4
6 January, Monday. day, 1°; night, -3°; partly cloudy
7
+2
−6
7 January, tue
+2
−6
Feels like
−6
544 mmHg
92%
4.3
m/s
W
Climate normal
−2
−5
7 January, Tuesday. day, 2°; night, -6°; mostly clear
8
−1
−5
8 January, wed
−1
−5
Feels like
−8
544 mmHg
77%
5.2
m/s
W
Climate normal
0
−4
8 January, Wednesday. day, -1°; night, -5°; partly cloudy
9
0
−1
9 January, thu
0
−1
Feels like
−7
546 mmHg
83%
5.5
m/s
W
Climate normal
0
−5
9 January, Thursday. day, 0°; night, -1°; partly cloudy
10
+2
−2
10 January, fri
+2
−2
Feels like
−5
543 mmHg
86%
5.4
m/s
W
Climate normal
−2
−4
10 January, Friday. day, 2°; night, -2°; partly cloudy
11
−1
−3
11 January, sat
−1
−3
Feels like
−8
543 mmHg
76%
5.2
m/s
W
Climate normal
−1
−6
11 January, Saturday. day, -1°; night, -3°; partly cloudy
12
0
−2
12 January, sun
0
−2
Feels like
−8
543 mmHg
76%
5.8
m/s
W
Climate normal
−3
−7
12 January, Sunday. day, 0°; night, -2°; mostly clear
13
+2
−3
13 January, mon
+2
−3
Feels like
−6
540 mmHg
76%
6.7
m/s
W
Climate normal
−1
−4
13 January, Monday. day, 2°; night, -3°; sleet
14
−4
−10
14 January, tue
−4
−10
Feels like
−13
543 mmHg
72%
4.9
m/s
NW
Climate normal
−2
−5
14 January, Tuesday. day, -4°; night, -10°; mostly clear
15
−3
−7
15 January, wed
−3
−7
Feels like
−11
544 mmHg
55%
4.9
m/s
W
Climate normal
+1
−3
15 January, Wednesday. day, -3°; night, -7°; clear
16
−2
−10
16 January, thu
−2
−10
Feels like
−11
541 mmHg
79%
5.1
m/s
NW
Climate normal
0
−4
16 January, Thursday. day, -2°; night, -10°; snow
Average data for 10 years
Next, the average data for 10 years
17
0
−3
17 January, fri
0
−3
Feels like
−5
647 mmHg
58%
4.8
m/s
W
17 January, Friday. day, 0°; night, -3°; clear
18
+2
−2
18 January, sat
+2
−2
Feels like
−3
646 mmHg
56%
5.9
m/s
W
18 January, Saturday. day, 2°; night, -2°; partly cloudy
Average for 30 days
5
sunny days
7
days with precipitation
18
cloudy days
5 sunny days; 7 days with precipitation; 18 cloudy days;
68
%
air humidity
5.4
m/s
Wind
W
4
mm of precipitation
(1% of annual average)
air humidity 68%; 4 millimeters of precipitation (1% of annual average); Wind westerly 5.4 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
W
W
W
W
W
W
W
W
W
NE
W
S
W
N
W
W
W
W
W
W
W
W
W
W
NW
W
NW
18
Average data for 10 years
19
20
21
22
23
24
25
26
27
28
29
30
31
1
January
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Daytime temperature
Night-time temperature
