Portsmouth Rhode Island Weather Almanac  
Monday, April 1, 2024  
Mostly Cloudy early then Partly Cloudy, Very Light Winds, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    April 1, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   51   52   50   +1   70   in 1945   32   in 1923  
Minimum Temperature   38   46   35   +3   51   in 2016   12   in 1923  
Average Temperature   45   49   43   +2   56   in 1945   22   in 1923  
 Month Avg Max Temperature   51.0   52.0   50.0   +1.0   70.0   in 1945   32.0   in 1923  
Month Avg Min Temperature   38.0   46.0   35.0   +3.0   51.0   in 2016   12.0   in 1923  
Month Average Temperature   45.0   49.0   43.0   +2.0   56.0   in 1945   22.0   in 1923  
High Heat Index                   0   in              
Low Wind Chill   38   43   28   +10             0   in 1923  
Heating Degree Days   20   16   22   -2   43   in 1923   9   in 1945  
Month Heating DD   20   16   22   -2   43   in 1923   9   in 1945  
Season Heating DD   4249   4083   4703   -454   5705   in 1918   3870   in 2016  
Cooling Degree Days   0   0   0   +0       in     0   in Many  
Month Cooling DD   0   0   0   +0   3   in 2022   0   in Many  
Year Cooling DD   726   784   609   +117   871   in 2020   290   in 1902  
Maximum Dew Point   44   52   38   +6   56   in 2022   11   in 1964  
Minimum Dew Point   28   45   25   +3   50   in 2016   4   in 1969  
Average  Dew Point   36   49   32   +4   52   in 2016   8   in 1964  
 Month Avg Max Dew Point   44.0   52.0   38.0   +6.0   56.0   in 2022   11.0   in 1964  
Month Avg Min Dew Point   28.0   45.0   25.0   +3.0   50.0   in 2016   4.0   in 1969  
Month Average Dew Point   36.0   49.0   32.0   +4.0   52.0   in 2016   8.0   in 1964  
Precipitation   .00   .59   .15   -.15   1.97   in 2004            
One Hour Rain   .00   .16           .55   in 2002            
Half Hour Rain   .00   .09           .18   in 2004            
Hourly Rain Rate   .00   .46           2.36   in 2021            
Month Precipitation   .00   .59   .15   -.15   1.97   in 2004   .00   in 2024  
Year Precipitation   18.84   14.09   11.74   +7.10   20.75   in 1998   6.31   in 2012  
Snow   0.0   0.0   0.1   -0.1   5.5   in 1997            
Snow Depth   0   0   0   +0   9   in 1970            
Month Snow   0.0   0.0   0.1   -0.1   5.5   in 1997   0.0   in 2024  
Season Snow   12.7   9.1   33.4   -20.7   78.0   in 2005   5.0   in 1998  
    April 1, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   88%   99%   88%   +0%   100%   in 2016   47%   in 1965  
Minimum Humidity   61%   92%   52%   +9%   95%   in 2016   18%   in 1977  
Average Humidity   75%   96%   70%   +5%   98%   in 2016   35%   in 1965  
Maximum Barometer   30.03   29.94   30.05   -00.02   30.52   in 1946   29.42   in 1966  
Minimum Barometer   29.89   29.28   29.74   +00.15   30.22   in 1963   29.04   in 1961  
Average Barometer   29.96   29.61   29.89   +00.07   30.35   in 1963   29.32   in 1966  
Average Wind   3.2   10.1   8.1   -4.9   15.4   in 1962   2.0   in 1994  
Direction   S   SSW   WNW       SSW   S  
High Wind Gust   14   43   26   -12   50   in 1982   13   in 1953  
Direction   SSE   SSW   SW       NW   SE  
Maximum Water Temp   45.3   44.8   43.3   +2.0   48.2   in 2000   39.1   in 2017  
Minimum Water Temp   44.4   44.4   41.2   +3.2   45.6   in 2016   37.0   in 2015  
Average Water Temp   44.9   44.6   42.3   +2.6   46.5   in 2012   38.2   in 2015  
Sunrise/ AM Twilight   6:27:09 AM   5:58:17 AM            
Sunset / PM Twilight   7:11:00 PM   7:39:17 PM            
Length Of Day   12:43:51                          
Special Conditions   None                                  
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