Weather History for Portsmouth, NH

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Month of January, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 35 °F 10 °F
Mean Temperature 50 °F 27 °F 6 °F
Min Temperature 39 °F 19 °F -2 °F
Degree Days  
Heating Degree Days (base 65) 60 38 16 1174
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 59 °F 16 °F -19 °F
Precipitation  
Precipitation 0.40 in 0.03 in 0.00 in 0.99 in
Snowdepth 5.0 in 2.7 in 1.0 in -
Wind  
Wind 30 mph 8 mph 0 mph
Gust Wind 48 mph 24 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.53 in 30.05 in 28.91 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 28, 2013 Rise Set
Actual Time 7:02 AM EST 4:50 PM EST
Civil Twilight 6:31 AM EST 5:21 PM EST
Nautical Twilight 5:57 AM EST 5:55 PM EST
Astronomical Twilight 5:24 AM EST 6:28 PM EST
Moon 6:46 PM EST (1/28) 7:22 AM EST (1/28)
Length of Visible Light 10h 49m
Length of Day
9h 48m
Full, 98% of the Moon is Illuminated
Jan 28
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter
Feb 25
Full

Weather History Calendar

Precipitation Actual month total 0.99 Average Month Total: 4.78
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
34 | 15 0.00
Average:
34 | 20 0.14
Scattered Clouds
Actual:
25 | 4 0.00
Average:
34 | 20 0.14
Scattered Clouds
Actual:
22 | 2 0.00
Average:
33 | 19 0.14
Partly Cloudy
Actual:
36 | 8 0.00
Average:
33 | 19 0.14
Partly Cloudy
Actual:
36 | 17 0.00
Average:
33 | 19 0.13
Snow
Actual:
39 | 19 0.01
Average:
32 | 18 1.21
Partly Cloudy
Actual:
32 | 20 0.00
Average:
32 | 18 0.13
Partly Cloudy
Actual:
44 | 24 0.00
Average:
32 | 17 0.13
Rain
Actual:
40 | 21 0.00
Average:
31 | 16 0.12
Scattered Clouds
Actual:
44 | 27 0.00
Average:
31 | 16 0.12
Rain
Actual:
37 | 23 0.06
Average:
30 | 15 0.12
Fog
Actual:
42 | 37 0.00
Average:
30 | 14 0.12
Fog
Actual:
49 | 39 0.00
Average:
29 | 14 0.11
Fog
Actual:
60 | 38 0.00
Average:
29 | 13 0.11
Mostly Cloudy
Actual:
39 | 29 0.00
Average:
28 | 13 0.11
Snow
Actual:
32 | 28 0.40
Average:
28 | 13 0.11
Partly Cloudy
Actual:
39 | 24 0.00
Average:
28 | 13 0.11
Partly Cloudy
Actual:
23 | 12 0.00
Average:
28 | 12 0.11
Mostly Cloudy
Actual:
43 | 19 0.00
Average:
28 | 12 0.11
Partly Cloudy
Actual:
50 | 26 0.00
Average:
28 | 12 0.11
Snow
Actual:
25 | 18 0.00
Average:
28 | 12 0.11
Snow
Actual:
26 | 10 0.00
Average:
28 | 12 0.11
Scattered Clouds
Actual:
10 | 1 0.00
Average:
28 | 12 0.11
Scattered Clouds
Actual:
14 | -2 0.00
Average:
28 | 12 0.11
Snow
Actual:
20 | 5 0.00
Average:
29 | 13 0.11
Snow
Actual:
24 | 10 0.00
Average:
29 | 13 0.11
Clear
Actual:
28 | 12 0.00
Average:
30 | 14 0.12
Snow
Actual:
27 | 11 0.14
Average:
30 | 14 0.12
Snow
Actual:
34 | 23 0.01
Average:
31 | 15 0.12
Rain
Actual:
59 | 31 0.13
Average:
31 | 15 0.12
Rain
Actual:
62 | 30 0.24
Average:
32 | 16 0.12
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 34 24 15 23 11 -2 70 52 40 29.91 29.76 29.67 10 10 10 22 12 29 0.00  
2 25 16 4 8 0 -10 63 50 39 30.10 29.96 29.88 10 10 10 22 10 26 0.00  
3 22 12 2 -1 -6 -10 58 47 33 30.12 30.06 29.97 10 10 10 13 8 - 0.00  
4 36 22 8 20 14 -1 82 63 50 29.95 29.85 29.77 10 10 10 13 6 20 0.00  
5 36 27 17 21 16 11 77 56 35 30.25 30.07 29.79 10 10 10 20 8 30 0.00  
6 39 29 19 25 21 14 86 74 56 30.20 30.03 29.92 10 8 1 7 2 - 0.01 Snow
7 32 26 20 25 21 14 85 77 67 30.39 30.23 29.94 10 10 10 8 4 - 0.00  
8 44 34 24 24 22 20 92 66 42 30.35 30.29 30.22 10 10 8 14 7 20 0.00  
9 40 30 21 31 25 19 91 74 60 30.40 30.19 29.95 10 10 7 13 3 20 0.00 Rain
10 44 36 27 26 23 20 77 53 42 30.53 30.29 29.98 10 10 10 25 15 39 0.00  
11 37 30 23 36 27 20 96 79 60 30.51 30.38 30.23 10 9 4 8 2 - 0.06 Rain
12 42 40 37 41 39 37 100 99 93 30.22 30.17 30.13 6 2 0 8 4 - 0.00 Fog
13 49 44 39 49 43 39 100 100 93 30.15 30.07 29.96 7 2 0 9 4 - 0.00 Fog
14 60 50 38 51 43 24 100 84 38 30.23 29.98 29.85 10 7 0 20 8 23 0.00 Fog
15 39 34 29 26 23 20 81 62 49 30.31 30.26 30.22 10 10 10 7 3 - 0.00  
16 32 30 28 31 28 20 100 93 63 30.25 29.96 29.81 10 5 0 9 5 - 0.40 Fog , Rain , Snow
17 39 32 24 31 22 6 100 75 45 30.10 29.94 29.81 10 9 1 16 7 23 0.00  
18 23 18 12 6 -6 -13 51 36 29 30.43 30.30 30.08 10 10 10 17 11 31 0.00  
19 43 31 19 27 17 4 68 50 40 30.34 30.08 29.86 10 10 10 22 10 33 0.00  
20 50 39 26 30 20 2 72 49 24 29.88 29.68 29.47 10 10 10 30 12 40 0.00  
21 25 22 18 17 4 -6 82 46 29 30.06 29.96 29.80 10 9 4 21 11 36 0.00 Snow
22 26 18 10 16 4 -9 80 55 22 30.05 29.86 29.74 10 9 7 17 10 26 0.00 Snow
23 10 6 1 -2 -12 -18 66 45 28 30.13 30.09 30.04 10 10 10 16 10 23 0.00  
24 14 6 -2 -11 -16 -19 47 35 24 30.17 30.08 30.02 10 10 10 26 14 36 0.00  
25 20 12 5 1 -9 -11 50 37 25 30.26 30.16 30.06 10 10 7 17 12 28 0.00 Snow
26 24 17 10 9 0 -12 80 54 26 30.18 30.06 30.00 10 9 2 21 7 30 0.00 Snow
27 28 20 12 -2 -6 -13 53 35 23 30.45 30.33 30.19 10 10 10 20 11 29 0.00  
28 27 19 11 21 8 -9 93 62 22 30.43 30.24 30.04 10 6 0 7 3 - 0.14 Fog , Snow
29 34 28 23 31 24 19 99 85 71 30.19 30.14 30.05 10 8 1 8 5 - 0.01 Snow
30 59 45 31 59 44 32 100 99 91 30.14 29.75 29.44 10 3 0 15 4 24 0.13 Fog , Rain
31 62 46 30 59 39 6 100 72 34 29.52 29.20 28.91 10 7 2 30 18 48 0.24 Rain