Compare the Climate and Weather in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal Airport

This page lets you compare and contrast the weather and climate in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal Airport year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

McCormick
South Carolina, United States
Greenwood County Airport
South Carolina, United States
Thomson-McDuffie County Airport
Georgia, United States
Washington-Wilkes County Airport
Georgia, United States
Daniel Field Airport
Georgia, United States
Aiken Municipal Airport
South Carolina, United States
Map
(will replace Aiken Municipal Airport)

Average High and Low Temperature

Compare the Average High and Low Temperature in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F723791553933973010175NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 55°F59°F67°F75°F82°F88°F91°F89°F84°F74°F65°F57°F
Greenwood County Airport 54°F58°F66°F74°F81°F87°F90°F89°F83°F73°F64°F56°F
Thomson-McDuffie County Airport 56°F60°F68°F75°F83°F89°F91°F89°F84°F75°F66°F59°F
Washington-Wilkes County Airport 57°F60°F68°F75°F83°F90°F92°F90°F85°F76°F67°F59°F
Daniel Field Airport 57°F61°F69°F76°F84°F89°F92°F90°F85°F76°F67°F60°F
Aiken Municipal Airport 55°F59°F67°F75°F82°F88°F91°F89°F83°F74°F65°F58°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 37°F39°F46°F53°F61°F68°F72°F71°F64°F54°F45°F39°F
Greenwood County Airport 35°F37°F44°F51°F60°F67°F70°F69°F63°F51°F42°F37°F
Thomson-McDuffie County Airport 35°F38°F44°F51°F59°F67°F70°F69°F63°F52°F43°F37°F
Washington-Wilkes County Airport 38°F41°F47°F54°F62°F69°F72°F71°F65°F55°F46°F41°F
Daniel Field Airport 40°F43°F49°F56°F64°F70°F73°F73°F68°F58°F49°F43°F
Aiken Municipal Airport 35°F37°F43°F50°F59°F66°F70°F69°F63°F52°F43°F37°F

McCormick

Average Hourly Temperature in McCormickJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolcomfortablewarmhotvery coldwarmvery cold

Greenwood County Airport

Average Hourly Temperature in Greenwood County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotvery coldvery cold

Thomson-McDuffie County Airport

Average Hourly Temperature in Thomson-McDuffie County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotwarmvery coldvery cold

Washington-Wilkes County Airport

Average Hourly Temperature in Washington-Wilkes County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolcomfortablewarmwarmhotvery cold

Daniel Field Airport

Average Hourly Temperature in Daniel Field AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoldcoolcoolcomfortablewarmwarmhot

Aiken Municipal Airport

Average Hourly Temperature in Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotvery coldvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%664966NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 50%51%54%59%57%56%55%59%63%65%60%52%
Greenwood County Airport 50%51%54%58%57%56%55%61%64%66%60%52%
Thomson-McDuffie County Airport 50%51%54%59%58%55%53%58%62%65%60%52%
Washington-Wilkes County Airport 50%51%54%59%58%57%55%60%63%66%60%52%
Daniel Field Airport 50%51%55%59%58%55%53%57%62%65%60%52%
Aiken Municipal Airport 50%51%55%59%58%55%53%58%62%65%60%52%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%44184849NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
McCormick 8.6d8.2d8.8d8.2d9.0d11.2d13.1d11.5d7.6d6.4d6.5d8.2d
Greenwood County Airport 8.5d8.1d9.0d8.5d9.2d10.9d12.9d11.8d7.8d6.4d6.7d8.0d
Thomson-McDuffie County Airport 8.8d8.2d8.8d8.1d8.7d11.2d13.2d11.4d7.5d6.1d6.4d8.2d
Washington-Wilkes County Airport 8.9d8.3d8.8d8.3d9.0d11.2d13.0d11.2d7.7d6.3d6.9d8.6d
Daniel Field Airport 8.6d8.2d8.8d7.9d8.9d11.7d14.0d12.7d8.0d6.1d6.0d7.6d
Aiken Municipal Airport 8.5d8.1d8.7d8.1d9.1d11.9d14.1d13.0d8.2d6.2d5.9d7.7d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in4.12.62.43.8NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 3.6″3.9″3.9″3.0″2.6″3.3″3.2″3.1″3.1″2.8″3.0″3.5″
Greenwood County Airport 3.6″3.8″3.9″3.1″2.8″3.2″3.1″3.2″3.2″3.0″3.1″3.5″
Thomson-McDuffie County Airport 3.6″4.1″3.9″2.9″2.6″3.3″3.2″3.2″3.1″2.6″2.9″3.4″
Washington-Wilkes County Airport 3.8″4.2″4.1″3.1″2.7″3.2″3.2″3.1″3.2″2.8″3.1″3.7″
Daniel Field Airport 3.5″3.9″3.8″2.8″2.6″3.5″3.4″3.5″3.1″2.7″2.7″3.3″
Aiken Municipal Airport 3.3″3.7″3.6″2.8″2.7″3.6″3.5″3.6″3.2″2.8″2.6″3.1″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in1.11.60.60.72.0NowNowThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 1.0″0.7″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.3″
Greenwood County Airport 1.6″1.3″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″0.8″
Thomson-McDuffie County Airport 1.2″0.6″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.3″
Washington-Wilkes County Airport 0.6″0.3″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″
Daniel Field Airport 0.7″0.3″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.2″
Aiken Municipal Airport 2.0″1.0″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.7″

Hours of Daylight

Compare the Hours of Daylight in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.49.9NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.4h12.3h11.3h10.4h9.9h
Greenwood County Airport 10.2h11.0h12.0h13.1h14.0h14.4h14.2h13.4h12.4h11.3h10.4h9.9h
Thomson-McDuffie County Airport 10.2h11.0h12.0h13.1h13.9h14.3h14.1h13.3h12.3h11.3h10.4h10.0h
Washington-Wilkes County Airport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.4h12.3h11.3h10.4h9.9h
Daniel Field Airport 10.2h11.0h12.0h13.0h13.9h14.3h14.1h13.3h12.3h11.3h10.4h10.0h
Aiken Municipal Airport 10.2h11.0h12.0h13.1h13.9h14.4h14.1h13.3h12.3h11.3h10.4h10.0h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%9286188NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
McCormick 0.1d0.0d0.1d1.2d7.8d20.4d27.6d26.7d16.1d4.9d1.3d0.4d
Greenwood County Airport 0.1d0.0d0.1d0.9d7.2d18.8d25.8d24.6d13.3d3.3d0.6d0.2d
Thomson-McDuffie County Airport 0.3d0.1d0.4d1.8d8.7d20.2d26.9d26.4d17.0d6.2d2.0d0.8d
Washington-Wilkes County Airport 0.5d0.3d0.5d1.5d8.2d20.2d27.6d27.7d18.5d6.7d2.2d1.2d
Daniel Field Airport 0.1d0.0d0.2d1.3d7.2d18.9d26.5d25.7d15.0d4.6d1.2d0.4d
Aiken Municipal Airport 0.5d0.5d1.0d2.6d9.2d21.2d28.3d26.8d17.3d6.1d2.1d0.9d

Average Wind Speed

Compare the Average Wind Speed in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph5.53.66.54.45.27.95.2NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
McCormick 5.15.35.55.24.64.03.83.74.24.54.74.8
Greenwood County Airport 4.85.15.25.04.43.83.63.54.04.34.54.6
Thomson-McDuffie County Airport 6.06.36.46.25.44.84.64.55.05.45.65.7
Washington-Wilkes County Airport 4.85.05.14.94.33.73.53.53.94.34.54.6
Daniel Field Airport 7.27.67.87.46.55.85.55.36.06.56.76.9
Aiken Municipal Airport 7.17.47.67.36.45.75.45.25.96.36.66.7

Tourism Score

Compare the Tourism Score in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.31.46.6NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.10.16.0NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field Airport
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare the Growing Degree Days in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°F6,000°F6,000°FNowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.82.66.8NowNowWashington-Wilkes County AirportWashington-Wilkes County AirportThomson-McDuffie County AirportThomson-McDuffie County AirportMcCormickMcCormickAiken Municipal AirportAiken Municipal AirportDaniel Field AirportDaniel Field AirportGreenwood County AirportGreenwood County Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
McCormick 2.93.84.96.16.76.76.56.05.44.43.32.7
Greenwood County Airport 2.93.74.96.16.76.86.56.15.44.43.32.6
Thomson-McDuffie County Airport 2.93.85.06.16.76.76.46.05.44.43.32.7
Washington-Wilkes County Airport 2.93.84.96.16.76.76.56.05.44.43.32.7
Daniel Field Airport 3.03.85.06.26.76.66.35.95.34.43.42.7
Aiken Municipal Airport 2.93.85.06.16.76.66.35.95.34.43.32.7

This report illustrates the typical weather for McCormick, Greenwood County Airport, Thomson-McDuffie County Airport, Washington-Wilkes County Airport, Daniel Field Airport, and Aiken Municipal Airport year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

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