Olney, Maryland, United States Climate

Weather: 7.69°C/45.84°F, Wind SW at 0 km/h, 96% Humidity, 0% Chance of rain

United States
(Photo by Regina Calvo on Unsplash)

Olney Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Olney has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 15.79ºC (60.42ºF) and it is 3.15% higher than United States’s averages. Olney typically receives about 50.25 millimeters (1.98 inches) of precipitation and has 46.65 rainy days (12.78% of the time) annually.

CountryUnited States
CityMaryland
Longitude-77.066923
Latitude39.1531627
Attitude/ElevationNonem (0ft)
Local timeThursday 11:10
Annual high temperature18.7ºC (65.66ºF)
Annual low temperature11.32ºC (52.38ºF)
Average annual precip.50.25mm (1.98in)
Warmest monthJuly (32.27ºC / 90.09ºF)
Coldest MonthJanuary (-1.02ºC / 30.16ºF)
Wettest MonthAugust (78.83mm / 3.1in)
Driest MonthJanuary (30.55mm / 1.2in)
Number of days with rainfall (≥ 1.0 mm)46.65 days (12.78%)
Days with no rain318.35 days (87.22%)
Humidity64.35%

Climate Olney: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)18.0(64.4)25.0(77.0)24.0(75.2)28.0(82.4)34.0(93.2)39.0(102.2)39.0(102.2)37.0(98.6)37.0(98.6)34.0(93.2)25.0(77.0)16.0(60.8)39.0(102.2)
Average high °C (°F)5.0(41.0)8.72(47.7)11.32(52.38)17.36(63.25)24.33(75.79)28.63(83.53)32.27(90.09)30.59(87.06)26.96(80.53)20.32(68.58)11.64(52.95)7.22(45.0)18.7(65.66)
Daily mean °C (°F)2.57(36.63)5.86(42.55)8.08(46.54)13.91(57.04)21.05(69.89)25.54(77.97)29.2(84.56)27.68(81.82)23.86(74.95)17.43(63.37)9.13(48.43)5.13(41.23)15.79(60.42)
Average low °C (°F)-1.02(30.16)1.87(35.37)3.53(38.35)8.67(47.61)15.67(60.21)20.19(68.34)23.85(74.93)23.1(73.58)19.54(67.17)13.19(55.74)5.43(41.77)1.87(35.37)11.32(52.38)
Record low °C (°F)-16.0(3.2)-12.0(10.4)-7.0(19.4)-1.0(30.2)3.0(37.4)12.0(53.6)18.0(64.4)18.0(64.4)10.0(50.0)3.0(37.4)-4.0(24.8)-7.0(19.4)-16.0(3.2)
Average precipitation mm (inches)30.55(1.2)42.18(1.66)40.93(1.61)42.94(1.69)59.53(2.34)54.3(2.14)65.58(2.58)78.83(3.1)46.47(1.83)49.77(1.96)41.5(1.63)50.45(1.99)50.25(1.98)
Average precipitation days (≥ 1.0 mm)2.553.823.553.824.914.644.915.914.273.182.272.823.89
Average relative humidity (%)65.1266.5660.1359.4766.161.5860.6964.9167.7366.5863.4969.8364.35
Mean monthly sunshine hours8.178.79.449.611.8413.1112.8710.299.949.717.736.699.84

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Olney in recent years.

Olney

Olney Temperature by Month

July
29.2°C | 84.56°F
August
27.68°C | 81.82°F
June
25.54°C | 77.97°F
September
23.86°C | 74.95°F
May
21.05°C | 69.89°F
October
17.43°C | 63.37°F
April
13.91°C | 57.04°F
November
9.13°C | 48.43°F
March
8.08°C | 46.54°F
February
5.86°C | 42.55°F
December
5.13°C | 41.23°F
January
2.57°C | 36.63°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature18.0°C (64.4°F)7.54°C (45.57°F)-3.0°C (26.6°F)
Avg Temperature14.0°C (57.2°F)4.57°C (40.23°F)-6.0°C (21.2°F)
Min Temperature8.0°C (46.4°F)0.61°C (33.1°F)-12.0°C (10.4°F)
Dew PointMaxAverageMin
Dew Point8.0°C (46.4°F)-2.75°C (27.05°F)-16.0°C (3.2°F)
PrecipitationMaxAverageMinSum
Precipitation35.2mm | 1.39in5.1mm | 0.2in0.0mm | 0in142.9mm | 5.63in
Snowdepth14.2mm | 0.56in0.56mm | 0.02in0.0mm | 0in15.7mm | 0.62in
WindMaxAverageMin
Wind19.0kmh | 11.81mph7.75kmh | 4.82mph2.0kmh | 1.24mph
Gust Wind41.0kmh | 25.48mph17.0kmh | 10.56mph5.0kmh | 3.11mph
Sea Level PressureMaxAverageMin
Sea Level Pressure35.2mb5.1mb0.0mb
Olney

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
February° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-02-01-6 | 21.2-14 | 6.8543 | 1.8630.39 | 10291.7 | 0.07
2019-02-02-3 | 26.6-7 | 19.4803 | 1.8630.3 | 10260.0 | 0.0
2019-02-034 | 39.22 | 35.6872 | 1.2430.15 | 10210.0 | 0.0
2019-02-0411 | 51.85 | 41.0793 | 1.8630.06 | 10180.0 | 0.0
2019-02-0513 | 55.48 | 46.4823 | 1.8630.03 | 10170.0 | 0.0
2019-02-0610 | 50.07 | 44.6856 | 3.7330.09 | 10192.6 | 0.1
2019-02-0710 | 50.07 | 44.6854 | 2.4930.03 | 10170.7 | 0.03
2019-02-088 | 46.41 | 33.86719 | 11.8130.09 | 10193.6 | 0.14
2019-02-09-0 | 32.0-16 | 3.23115 | 9.3230.68 | 10390.0 | 0.0
2019-02-102 | 35.6-13 | 8.6354 | 2.4930.59 | 10360.4 | 0.02
2019-02-111 | 33.8-1 | 30.2916 | 3.7330.3 | 102613.3 | 0.52
2019-02-122 | 35.61 | 33.89411 | 6.8430.06 | 101823.6 | 0.93
2019-02-134 | 39.2-3 | 26.66214 | 8.729.83 | 10102.6 | 0.1
2019-02-147 | 44.6-3 | 26.6547 | 4.3530.06 | 10180.0 | 0.0
2019-02-1514 | 57.23 | 37.45611 | 6.8429.8 | 10090.5 | 0.02
2019-02-164 | 39.2-5 | 23.0529 | 5.5929.94 | 10140.0 | 0.0
2019-02-173 | 37.4-5 | 23.0615 | 3.1130.06 | 10189.9 | 0.39
2019-02-185 | 41.0-2 | 28.4678 | 4.9730.03 | 101719.1 | 0.75
2019-02-192 | 35.6-11 | 12.2415 | 3.1130.56 | 10350.0 | 0.0
2019-02-20-1 | 30.2-4 | 24.8786 | 3.7330.42 | 103023.0 | 0.91
2019-02-213 | 37.42 | 35.6966 | 3.7330.09 | 10192.7 | 0.11
2019-02-226 | 42.81 | 33.8707 | 4.3530.39 | 10291.0 | 0.04
2019-02-234 | 39.2-0 | 32.0755 | 3.1130.36 | 10283.0 | 0.12
2019-02-248 | 46.43 | 37.47614 | 8.729.74 | 100735.2 | 1.39
2019-02-254 | 39.2-12 | 10.43117 | 10.5630.09 | 10190.0 | 0.0
2019-02-266 | 42.8-10 | 14.0358 | 4.9730.39 | 10290.0 | 0.0
2019-02-273 | 37.4-6 | 21.2559 | 5.5930.27 | 10250.0 | 0.0
2019-02-284 | 39.2-5 | 23.0557 | 4.3530.15 | 10210.0 | 0.0

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