Annual Weather Averages in Río Grande
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Río Grande
High Temp: 61 °F
Low Temp: 28 °F
Mean Temp: 43 °F
Precipitation: 0.95"
Humidity: 79%
Dew Point: 37 °F
Wind: 28 mph
Pressure: 29.55 "Hg
Visibility: 7 mi
January Climate & Weather Averages in Río Grande
High Temp: 61 °F
Low Temp: 44 °F
Mean Temp: 53 °F
Precipitation: 1.18"
Humidity: 71%
Dew Point: 44 °F
Wind: 34 mph
Pressure: 29.47 "Hg
Visibility: 7 mi
February Climate & Weather Averages in Río Grande
High Temp: 60 °F
Low Temp: 44 °F
Mean Temp: 52 °F
Precipitation: 1.10"
Humidity: 74%
Dew Point: 43 °F
Wind: 31 mph
Pressure: 29.56 "Hg
Visibility: 7 mi
March Climate & Weather Averages in Río Grande
High Temp: 56 °F
Low Temp: 40 °F
Mean Temp: 48 °F
Precipitation: 1.31"
Humidity: 78%
Dew Point: 42 °F
Wind: 30 mph
Pressure: 29.56 "Hg
Visibility: 7 mi
April Climate & Weather Averages in Río Grande
High Temp: 51 °F
Low Temp: 36 °F
Mean Temp: 43 °F
Precipitation: 1.15"
Humidity: 83%
Dew Point: 38 °F
Wind: 26 mph
Pressure: 29.54 "Hg
Visibility: 7 mi
May Climate & Weather Averages in Río Grande
High Temp: 44 °F
Low Temp: 32 °F
Mean Temp: 38 °F
Precipitation: 1.00"
Humidity: 88%
Dew Point: 34 °F
Wind: 21 mph
Pressure: 29.61 "Hg
Visibility: 7 mi
June Climate & Weather Averages in Río Grande
High Temp: 38 °F
Low Temp: 28 °F
Mean Temp: 33 °F
Precipitation: 0.92"
Humidity: 90%
Dew Point: 30 °F
Wind: 19 mph
Pressure: 29.55 "Hg
Visibility: 7 mi
July Climate & Weather Averages in Río Grande
High Temp: 38 °F
Low Temp: 28 °F
Mean Temp: 33 °F
Precipitation: 0.77"
Humidity: 88%
Dew Point: 30 °F
Wind: 21 mph
Pressure: 29.61 "Hg
Visibility: 7 mi
August Climate & Weather Averages in Río Grande
High Temp: 42 °F
Low Temp: 31 °F
Mean Temp: 36 °F
Precipitation: 0.81"
Humidity: 86%
Dew Point: 32 °F
Wind: 24 mph
Pressure: 29.58 "Hg
Visibility: 7 mi
September Climate & Weather Averages in Río Grande
High Temp: 47 °F
Low Temp: 33 °F
Mean Temp: 40 °F
Precipitation: 0.59"
Humidity: 80%
Dew Point: 34 °F
Wind: 26 mph
Pressure: 29.65 "Hg
Visibility: 7 mi
October Climate & Weather Averages in Río Grande
High Temp: 52 °F
Low Temp: 36 °F
Mean Temp: 44 °F
Precipitation: 0.59"
Humidity: 73%
Dew Point: 36 °F
Wind: 32 mph
Pressure: 29.54 "Hg
Visibility: 7 mi
November Climate & Weather Averages in Río Grande
High Temp: 56 °F
Low Temp: 40 °F
Mean Temp: 48 °F
Precipitation: 0.81"
Humidity: 72%
Dew Point: 39 °F
Wind: 35 mph
Pressure: 29.48 "Hg
Visibility: 7 mi
December Climate & Weather Averages in Río Grande
High Temp: 59 °F
Low Temp: 43 °F
Mean Temp: 51 °F
Precipitation: 1.18"
Humidity: 71%
Dew Point: 42 °F
Wind: 35 mph
Pressure: 29.46 "Hg
Visibility: 7 mi