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1971-2000 Climate Normals

Station: 446139 - Norfolk Intl Ap
Station type: COOP - TP what is this?
City, State: Norfolk, VA       County: Norfolk County
Latitude: 36.903° N      Longitude: 76.192° W
Elevation: 30 feet above sea level
Climate division: VA01 - Tidewater
River basin: Lynnhaven-Poquoson
Supported by: NOAA National Weather Service

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Monthly Normals
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

Jan Feb Mar Apr May June Jul Aug Sept Oct Nov Dec Ann.
What is This? Normal Monthly Maximum Temperature47.8 °F 50.3 °F 57.8 °F 67 °F 74.9 °F 82.8 °F 86.8 °F 84.7 °F 79.4 °F 69.4 °F 60.9 °F 52.3 °F 67.8 °F
What is This? Normal Monthly Minimum Temperature32.3 °F 33.6 °F 40.1 °F 47.8 °F 57.6 °F 66.2 °F 71.4 °F 70.1 °F 64.8 °F 52.8 °F 43.7 °F 36.1 °F 51.4 °F
What is This? Normal Monthly Mean Temperatures40.1 °F 42 °F 49 °F 57.4 °F 66.3 °F 74.5 °F 79.1 °F 77.4 °F 72.1 °F 61.1 °F 52.3 °F 44.2 °F 59.6 °F
What is This? Normal Monthly Precipitation3.93 in. 3.34 in. 4.08 in. 3.38 in. 3.74 in. 3.77 in. 5.17 in. 4.79 in. 4.06 in. 3.47 in. 2.98 in. 3.03 in. 45.7 in.
What is This? Normal Cooling Degree Days1 2 8 35 119 303 453 400 235 45 10 1 1612
What is This? Normal Heating Degree Days759 638 488 247 66 4 0 0 8 152 375 631 3368
What is This? Highest Mean Temperature47.9 °F 49.3 °F 53.6 °F 63.5 °F 71.6 °F 78.5 °F 82.3 °F 80.6 °F 75.6 °F 66.1 °F 59.5 °F 51.6 °F 82.3 °F
What is This? Median Monthly Mean Temperature39.8 °F 42.4 °F 48.9 °F 57.5 °F 66.3 °F 74.8 °F 79 °F 77.3 °F 72 °F 61.2 °F 52.6 °F 44.4 °F 59.4 °F
What is This? Lowest Mean Temperature28.5 °F 32.2 °F 44.6 °F 51.8 °F 61.2 °F 70 °F 76 °F 74.6 °F 69.5 °F 55.8 °F 45 °F 34 °F 28.5 °F
What is This? Year of Highest Mean Temperature1974 1990 1977 1994 1991 1994 1993 1980 1980 1984 1985 1971 1993
What is This? Year of Lowest Mean Temperature1977 1978 1984 1975 1992 1972 1978 1992 1982 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.
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

show/hide Normal Daily Maximum Temperature Table



Normal Daily Minimum Temperature
The 30-year normal value for minimum temperatures each day.
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

show/hide Normal Daily Minimum Temperature Table



Normal Daily Mean Temperature
The 30-year normal value for mean temperatures for each day.
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

show/hide Normal Daily Mean Temperature Table



Normal Precipitation by Day

446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

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
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

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
446139 - Norfolk Intl Ap (COOP)
Norfolk, VA       Norfolk County
36.903N    -76.192W

show/hide Normal Daily Heating Degree Days Table