Weather History for Portsmouth, NH

Change the Weather History Date:

Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 94 °F 72 °F 61 °F
Mean Temperature 81 °F 61 °F 50 °F
Min Temperature 68 °F 51 °F 38 °F
Degree Days  
Heating Degree Days (base 65) 14 5 0 162
Cooling Degree Days (base 65) 16 2 0 55
Growing Degree Days (base 50) 31 11 0 335
Dew Point  
Dew Point 74 °F 53 °F 33 °F
Precipitation  
Precipitation 1.89 in 0.21 in 0.00 in 6.21 in
Snowdepth - - - -
Wind  
Wind 23 mph 6 mph 0 mph
Gust Wind 33 mph 22 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.42 in 29.99 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 28, 2013 Rise Set
Actual Time 6:37 AM EDT 6:29 PM EDT
Civil Twilight 6:09 AM EDT 6:57 PM EDT
Nautical Twilight 5:36 AM EDT 7:30 PM EDT
Astronomical Twilight 5:02 AM EDT 8:04 PM EDT
Moon 12:14 AM EDT (9/28) 2:53 PM EDT (9/28)
Length of Visible Light 12h 48m
Length of Day
11h 51m
Last Quarter, 36% of the Moon is Illuminated
Sep 28
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Weather History Calendar

Precipitation Actual month total 6.21 Average Month Total: 3.43
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Thunderstorm
Actual:
86 | 68 0.63
Average:
75 | 55 0.08
Thunderstorm
Actual:
71 | 67 1.89
Average:
75 | 55 0.09
Rain
Actual:
80 | 64 0.01
Average:
74 | 55 0.09
Scattered Clouds
Actual:
81 | 60 0.00
Average:
74 | 55 0.09
Rain
Actual:
66 | 51 0.01
Average:
74 | 55 0.10
Scattered Clouds
Actual:
69 | 45 0.00
Average:
74 | 54 0.10
Rain
Actual:
79 | 50 0.00
Average:
73 | 54 0.11
Partly Cloudy
Actual:
73 | 50 0.00
Average:
73 | 54 0.11
Partly Cloudy
Actual:
70 | 44 0.00
Average:
73 | 54 0.11
Rain
Actual:
72 | 54 0.06
Average:
72 | 54 0.12
Thunderstorm
Actual:
94 | 68 0.00
Average:
72 | 53 0.12
Thunderstorm
Actual:
84 | 66 1.63
Average:
71 | 53 0.12
Thunderstorm
Actual:
74 | 57 1.22
Average:
71 | 53 0.12
Rain
Actual:
68 | 52 0.12
Average:
71 | 53 0.13
Partly Cloudy
Actual:
70 | 49 0.00
Average:
71 | 52 0.13
Rain
Actual:
67 | 46 0.00
Average:
70 | 52 0.13
Clear
Actual:
64 | 38 0.00
Average:
70 | 52 0.13
Clear
Actual:
73 | 43 0.00
Average:
70 | 51 0.13
Clear
Actual:
73 | 48 0.00
Average:
69 | 51 0.13
Partly Cloudy
Actual:
72 | 49 0.00
Average:
69 | 50 0.12
Fog
Actual:
73 | 48 0.00
Average:
68 | 50 0.12
Thunderstorm
Actual:
72 | 52 0.64
Average:
68 | 49 0.12
Clear
Actual:
61 | 44 0.00
Average:
67 | 49 0.12
Scattered Clouds
Actual:
64 | 43 0.00
Average:
67 | 48 0.12
Partly Cloudy
Actual:
62 | 43 0.00
Average:
66 | 47 0.12
Partly Cloudy
Actual:
64 | 47 0.00
Average:
66 | 47 0.11
Partly Cloudy
Actual:
67 | 52 0.00
Average:
65 | 46 0.11
Fog
Actual:
70 | 48 0.00
Average:
65 | 45 0.11
Fog
Actual:
65 | 46 0.00
Average:
64 | 45 0.12
Fog
Actual:
63 | 45 0.00
Average:
64 | 44 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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 86 77 68 72 70 68 99 87 54 29.88 29.84 29.78 10 6 1 15 6 - 0.63 Rain , Thunderstorm
2 71 69 67 72 69 68 100 99 92 29.86 29.80 29.72 10 3 0 10 5 - 1.89 Fog , Rain , Thunderstorm
3 80 72 64 72 67 58 100 90 67 29.78 29.73 29.68 10 6 0 10 3 - 0.01 Fog , Rain
4 81 70 60 59 56 53 90 65 40 29.89 29.84 29.79 10 10 10 13 8 - 0.00  
5 66 58 51 61 53 41 89 74 55 30.14 29.96 29.86 10 10 7 13 5 22 0.01 Rain
6 69 56 45 45 41 36 85 57 32 30.24 30.16 30.07 10 10 10 8 5 - 0.00  
7 79 64 50 58 49 45 82 60 36 30.06 29.94 29.83 10 10 10 10 7 - 0.00 Rain
8 73 62 50 56 47 37 70 55 34 30.08 29.85 29.73 10 10 10 21 9 28 0.00  
9 70 56 44 50 43 38 92 63 35 30.23 30.16 30.10 10 10 10 10 5 - 0.00  
10 72 63 54 70 62 47 100 87 76 30.14 30.07 30.02 10 9 7 12 6 21 0.06 Rain
11 94 81 68 74 70 64 100 78 46 30.05 29.99 29.91 10 6 0 15 6 22 0.00 Fog , Rain , Thunderstorm
12 84 74 66 73 69 66 100 89 70 29.93 29.78 29.66 10 7 0 23 6 33 1.63 Rain , Thunderstorm
13 74 65 57 68 65 54 100 94 78 29.74 29.62 29.56 10 5 0 14 5 - 1.22 Rain , Thunderstorm
14 68 61 52 55 53 49 100 80 57 30.04 29.88 29.75 10 9 3 12 6 - 0.12 Rain
15 70 60 49 51 48 44 92 69 42 30.15 30.08 30.03 10 10 10 10 6 - 0.00  
16 67 56 46 54 48 34 87 73 55 30.27 30.07 30.00 10 10 10 15 7 - 0.00 Rain
17 64 50 38 46 38 33 87 62 38 30.42 30.35 30.28 10 10 10 13 8 18 0.00  
18 73 58 43 50 45 41 97 67 32 30.31 30.22 30.12 10 10 10 9 4 - 0.00  
19 73 60 48 54 49 45 96 69 37 30.13 30.09 30.03 10 10 10 9 5 - 0.00  
20 72 60 49 57 54 49 100 83 47 30.10 30.04 30.01 10 9 3 10 3 - 0.00  
21 73 60 48 63 56 48 100 93 67 30.03 29.93 29.74 10 4 0 14 5 - 0.00 Fog
22 72 62 52 65 57 42 98 80 47 29.80 29.66 29.59 10 9 2 21 11 28 0.64 Rain , Thunderstorm
23 61 52 44 41 39 38 79 63 45 29.99 29.90 29.82 10 10 10 18 10 22 0.00  
24 64 54 43 46 41 38 88 69 41 29.97 29.89 29.82 10 10 10 15 8 - 0.00  
25 62 52 43 50 45 42 98 76 54 29.99 29.92 29.88 10 10 10 10 4 - 0.00  
26 64 56 47 50 47 44 88 69 52 30.14 30.05 30.00 10 10 10 10 5 - 0.00  
27 67 59 52 52 50 48 99 72 54 30.26 30.20 30.14 10 10 10 8 6 - 0.00  
28 70 58 48 55 51 48 100 84 52 30.34 30.29 30.26 10 8 0 12 4 - 0.00 Fog
29 65 56 46 62 49 44 100 91 47 30.27 30.20 30.12 10 5 0 10 3 - 0.00 Fog
30 63 54 45 58 48 45 100 93 57 30.14 30.07 29.98 10 5 0 8 3 - 0.00 Fog