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1971-2000 Climate Normals

Station: 445050 - Louisa
Station type: COOP - TP what is this?
City, State: Louisa, VA       County: Louisa County
Latitude: 38.042° N      Longitude: 78.006° W
Elevation: 420 feet above sea level
Climate division: VA02 - Eastern Piedmont
River basin: Pamunkey
Supported by: NOAA National Weather Service

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Monthly Normals
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

Jan Feb Mar Apr May June Jul Aug Sept Oct Nov Dec Ann.
What is This? Normal Monthly Maximum Temperature44.5 °F 49.2 °F 58.6 °F 69.3 °F 76.1 °F 83.1 °F 86.6 °F 84.8 °F 78.7 °F 68.6 °F 58.1 °F 47.9 °F 67.1 °F
What is This? Normal Monthly Minimum Temperature21.3 °F 23.5 °F 30.7 °F 38.8 °F 48.6 °F 57.4 °F 62.1 °F 60.5 °F 53.6 °F 40.9 °F 32.2 °F 24.7 °F 41.2 °F
What is This? Normal Monthly Mean Temperatures32.9 °F 36.4 °F 44.7 °F 54.1 °F 62.4 °F 70.3 °F 74.4 °F 72.7 °F 66.2 °F 54.8 °F 45.2 °F 36.3 °F 54.2 °F
What is This? Normal Monthly Precipitation3.48 in. 3 in. 3.85 in. 3.07 in. 3.92 in. 3.75 in. 4.45 in. 3.63 in. 4.05 in. 3.88 in. 3.82 in. 3.12 in. 44 in.
What is This? Normal Cooling Degree Days0 0 0 2 44 176 291 241 88 12 0 0 854
What is This? Normal Heating Degree Days995 802 632 332 126 18 1 5 53 329 596 890 4779
What is This? Highest Mean Temperature42.3 °F 45 °F 49.7 °F 59.7 °F 69 °F 73.6 °F 77.8 °F 75.9 °F 71.9 °F 62.4 °F 52.4 °F 44.2 °F 77.8 °F
What is This? Median Monthly Mean Temperature33 °F 36 °F 44.7 °F 53.8 °F 62.4 °F 70.6 °F 74.9 °F 73 °F 66.1 °F 54.7 °F 45.5 °F 36.3 °F 54.1 °F
What is This? Lowest Mean Temperature21.9 °F 24.6 °F 40 °F 49.4 °F 59.1 °F 65.5 °F 71.2 °F 68.9 °F 62.7 °F 49.5 °F 38.2 °F 24.6 °F 21.9 °F
What is This? Year of Highest Mean Temperature1990 1990 1977 1994 1991 1996 1999 1995 1998 1984 1985 1984 1999
What is This? Year of Lowest Mean Temperature1977 1979 1993 1975 1973 1972 1975 1982 1975 1987 1976 1989 1977



Official daily normals are calculated by the National Climatic Data Center using a linear interpolation of the monthly normals. Since the daily normals do not account for daily climate variability, the State Climate Office of North Carolina provides a daily normal 'range' that incorporates the historical variations in climate for any given day. More details on this technique are available in:

Holder, C., R. Boyles, P. Robinson, S. Raman, and G. Fishel (2006). Calculating a Daily Normal Temperature Range that Reflects Daily Temperature Variability. Bulletin of the American Meteorological Society, Vol. 87, pp 769-774.

Normal Daily Maximum Temperature
The 30-year normal value for maximum temperatures each day.
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Maximum Temperature Table



Normal Daily Minimum Temperature
The 30-year normal value for minimum temperatures each day.
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Minimum Temperature Table



Normal Daily Mean Temperature
The 30-year normal value for mean temperatures for each day.
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Mean Temperature Table



Normal Precipitation by Day

445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Precipitation Table

Normal Cooling Degree Days (CDD) by Day
The 30-year normal value for cooling degree days for each day. Base 65 F
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Cooling Degree Days Table

Normal Heating Degree Days (HDD) by Day
The 30-year normal value for heating degree days for each day. Base 65 F
445050 - Louisa (COOP)
Louisa, VA       Louisa County
38.042N    -78.006W

show/hide Normal Daily Heating Degree Days Table