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1971-2000 Climate Normals

Station: 389350 - Winthrop Univ
Station type: COOP - TP what is this?
City, State: Rock Hill, SC       County: York County
Latitude: 34.938° N      Longitude: 81.032° W
Elevation: 690 feet above sea level
Climate division: SC03 - North Central
River basin: Lower Catawba
Supported by: NOAA National Weather Service

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Monthly Normals
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

Jan Feb Mar Apr May June Jul Aug Sept Oct Nov Dec Ann.
What is This? Normal Monthly Maximum Temperature51.8 °F 56.7 °F 65 °F 73.6 °F 80.4 °F 86.9 °F 90.1 °F 88.1 °F 82.3 °F 72.8 °F 63.4 °F 54.4 °F 72.1 °F
What is This? Normal Monthly Minimum Temperature32.5 °F 34.9 °F 41.9 °F 49.3 °F 58.1 °F 66 °F 70 °F 68.9 °F 62.8 °F 51.2 °F 42.3 °F 35.1 °F 51.1 °F
What is This? Normal Monthly Mean Temperatures42.2 °F 45.8 °F 53.5 °F 61.5 °F 69.3 °F 76.5 °F 80.1 °F 78.5 °F 72.6 °F 62 °F 52.9 °F 44.8 °F 61.6 °F
What is This? Normal Monthly Precipitation4.64 in. 3.97 in. 5.04 in. 3.33 in. 3.42 in. 4.33 in. 4.12 in. 3.88 in. 4.68 in. 3.8 in. 3.59 in. 3.52 in. 48.3 in.
What is This? Normal Cooling Degree Days0 0 8 31 163 344 466 418 233 53 5 0 1721
What is This? Normal Heating Degree Days709 538 366 138 31 1 0 0 7 147 369 628 2934
What is This? Highest Mean Temperature53.2 °F 53.3 °F 59.2 °F 65.7 °F 75.3 °F 81.3 °F 85.9 °F 81.7 °F 75.8 °F 67.9 °F 59.3 °F 52.6 °F 85.9 °F
What is This? Median Monthly Mean Temperature41.5 °F 46.5 °F 53.5 °F 61.6 °F 68.9 °F 76.3 °F 79.8 °F 78.3 °F 72.1 °F 62.1 °F 53.1 °F 44.3 °F 61.6 °F
What is This? Lowest Mean Temperature31.1 °F 37.1 °F 47.9 °F 55.9 °F 65.7 °F 71.5 °F 76.1 °F 75.2 °F 68.5 °F 56.6 °F 45.6 °F 36.5 °F 31.1 °F
What is This? Year of Highest Mean Temperature1974 1990 1997 1981 1991 1986 1993 1987 1980 1984 1985 1971 1993
What is This? Year of Lowest Mean Temperature1977 1978 1971 1983 1972 1972 1971 1971 1974 1987 1976 2000 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.
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

show/hide Normal Daily Maximum Temperature Table



Normal Daily Minimum Temperature
The 30-year normal value for minimum temperatures each day.
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

show/hide Normal Daily Minimum Temperature Table



Normal Daily Mean Temperature
The 30-year normal value for mean temperatures for each day.
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

show/hide Normal Daily Mean Temperature Table



Normal Precipitation by Day

389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

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
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

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
389350 - Winthrop Univ (COOP)
Rock Hill, SC       York County
34.938N    -81.032W

show/hide Normal Daily Heating Degree Days Table