Thornton, Ascension, Saint Helena Climate

Weather: 22.49°C/72.48°F, Wind SW at 7.97 km/h, 70% Humidity, 0% Chance of rain

Saint Helena
(Photo by Misael Moreno on Unsplash)

Thornton Climate Summary

Located at an elevation of 521.3 meters (1710.3 feet) above sea level, Thornton has a Tropical and subtropical desert climate climate (Classification: Bwh). The district’s yearly temperature is 26.31ºC (79.36ºF) and it is 5.81% higher than Saint Helena’s averages. Thornton typically receives about 31.33 millimeters (1.23 inches) of precipitation and has 150.87 rainy days (41.33% of the time) annually.

CountrySaint Helena
CityAscension
LongitudeNone
LatitudeNone
Attitude/Elevation521.3m (1710.3ft)
Local timeThursday 21:34
Annual high temperature26.76ºC (80.17ºF)
Annual low temperature25.57ºC (78.03ºF)
Average annual precip.31.33mm (1.23in)
Warmest monthApril (28.76ºC / 83.77ºF)
Coldest MonthSeptember (23.93ºC / 75.07ºF)
Wettest MonthJuly (44.29mm / 1.74in)
Driest MonthJanuary (18.41mm / 0.72in)
Number of days with rainfall (≥ 1.0 mm)150.87 days (41.33%)
Days with no rain214.13 days (58.67%)
Humidity82.31%

Climate Thornton: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)28.45(83.21)29.5(85.1)30.56(87.01)30.56(87.01)29.5(85.1)29.5(85.1)28.45(83.21)27.4(81.32)26.34(79.41)26.34(79.41)26.34(79.41)27.4(81.32)30.56(87.01)
Average high °C (°F)26.96(80.53)27.82(82.08)28.67(83.61)28.76(83.77)28.18(82.72)27.29(81.12)26.38(79.48)25.54(77.97)25.11(77.2)25.17(77.31)25.4(77.72)25.86(78.55)26.76(80.17)
Daily mean °C (°F)26.46(79.63)27.33(81.19)28.15(82.67)28.36(83.05)27.78(82.0)26.87(80.37)25.89(78.6)25.11(77.2)24.62(76.32)24.7(76.46)25.0(77.0)25.42(77.76)26.31(79.36)
Average low °C (°F)25.67(78.21)26.68(80.02)27.45(81.41)27.69(81.84)26.95(80.51)26.25(79.25)25.07(77.13)24.46(76.03)23.93(75.07)23.98(75.16)24.24(75.63)24.53(76.15)25.57(78.03)
Record low °C (°F)15.81(60.46)16.86(62.35)17.91(64.24)17.91(64.24)18.97(66.15)16.86(62.35)15.81(60.46)14.75(58.55)13.7(56.66)13.7(56.66)14.75(58.55)14.75(58.55)13.7(56.66)
Average precipitation mm (inches)18.41(0.72)19.15(0.75)28.96(1.14)35.83(1.41)30.01(1.18)36.27(1.43)44.29(1.74)43.12(1.7)37.68(1.48)33.19(1.31)26.31(1.04)22.69(0.89)31.33(1.23)
Average precipitation days (≥ 1.0 mm)5.174.315.658.2410.3514.8519.2522.3220.8817.8212.559.4812.57
Average relative humidity (%)83.5983.6182.7381.5880.2479.0879.3681.683.4884.4184.683.4482.32
Mean monthly sunshine hours10.6810.9511.1710.710.2810.289.99.469.08.89.09.39.96

Climate Graph

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

Thornton

Thornton Temperature by Month

April
28.36°C | 83.05°F
March
28.15°C | 82.67°F
May
27.78°C | 82.0°F
February
27.33°C | 81.19°F
June
26.87°C | 80.37°F
January
26.46°C | 79.63°F
July
25.89°C | 78.6°F
December
25.42°C | 77.76°F
August
25.11°C | 77.2°F
November
25.0°C | 77.0°F
October
24.7°C | 76.46°F
September
24.62°C | 76.32°F

Historical Data

Summary
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature26.34°C (79.41°F)25.61°C (78.1°F)25.29°C (77.52°F)
Avg Temperature25.29°C (77.52°F)25.18°C (77.32°F)24.24°C (75.63°F)
Min Temperature25.29°C (77.52°F)24.8°C (76.64°F)24.24°C (75.63°F)
Dew PointMaxAverageMin
Dew Point23.18°C (73.72°F)21.53°C (70.75°F)20.02°C (68.04°F)
PrecipitationMaxAverageMinSum
Precipitation1.79mm | 0.07in0.89mm | 0.04in0.21mm | 0.01in26.67mm | 1.05in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind31.61kmh | 19.64mph25.75kmh | 16.0mph17.91kmh | 11.13mph
Gust Wind45.31kmh | 28.15mph36.39kmh | 22.61mph25.29kmh | 15.71mph
Sea Level PressureMaxAverageMin
Sea Level Pressure1.79mb0.89mb0.21mb
Thornton

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
November° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-11-0124.24 | 75.6320.02 | 68.047823.18 | 14.431.55 | 1068.450.63 | 0.02
2018-11-0225.29 | 77.5220.02 | 68.047721.07 | 13.0931.52 | 1067.40.42 | 0.02
2018-11-0325.29 | 77.5220.02 | 68.047722.13 | 13.7531.52 | 1067.40.84 | 0.03
2018-11-0425.29 | 77.5220.02 | 68.047725.29 | 15.7131.49 | 1066.340.63 | 0.02
2018-11-0525.29 | 77.5221.07 | 69.937925.29 | 15.7131.52 | 1067.40.95 | 0.04
2018-11-0625.29 | 77.5222.13 | 71.838027.4 | 17.0331.52 | 1067.41.69 | 0.07
2018-11-0725.29 | 77.5221.07 | 69.938028.45 | 17.6831.55 | 1068.451.69 | 0.07
2018-11-0825.29 | 77.5221.07 | 69.937928.45 | 17.6831.55 | 1068.451.48 | 0.06
2018-11-0925.29 | 77.5222.13 | 71.838223.18 | 14.431.55 | 1068.451.79 | 0.07
2018-11-1025.29 | 77.5222.13 | 71.838528.45 | 17.6831.52 | 1067.41.37 | 0.05
2018-11-1125.29 | 77.5221.07 | 69.938127.4 | 17.0331.49 | 1066.341.05 | 0.04
2018-11-1225.29 | 77.5221.07 | 69.937926.34 | 16.3731.52 | 1067.40.84 | 0.03
2018-11-1325.29 | 77.5222.13 | 71.838223.18 | 14.431.52 | 1067.41.05 | 0.04
2018-11-1425.29 | 77.5222.13 | 71.838322.13 | 13.7531.49 | 1066.340.84 | 0.03
2018-11-1525.29 | 77.5222.13 | 71.838317.91 | 11.1331.49 | 1066.340.74 | 0.03
2018-11-1625.29 | 77.5222.13 | 71.838422.13 | 13.7531.55 | 1068.450.32 | 0.01
2018-11-1725.29 | 77.5222.13 | 71.838523.18 | 14.431.55 | 1068.450.32 | 0.01
2018-11-1824.24 | 75.6321.07 | 69.938231.61 | 19.6431.55 | 1068.450.95 | 0.04
2018-11-1925.29 | 77.5221.07 | 69.938231.61 | 19.6431.52 | 1067.41.79 | 0.07
2018-11-2025.29 | 77.5222.13 | 71.838428.45 | 17.6831.55 | 1068.450.63 | 0.02
2018-11-2125.29 | 77.5222.13 | 71.838427.4 | 17.0331.55 | 1068.450.53 | 0.02
2018-11-2225.29 | 77.5222.13 | 71.838425.29 | 15.7131.52 | 1067.40.74 | 0.03
2018-11-2325.29 | 77.5222.13 | 71.838424.24 | 15.0631.52 | 1067.41.16 | 0.05
2018-11-2425.29 | 77.5223.18 | 73.728526.34 | 16.3731.52 | 1067.40.21 | 0.01
2018-11-2525.29 | 77.5221.07 | 69.938126.34 | 16.3731.55 | 1068.450.84 | 0.03
2018-11-2624.24 | 75.6321.07 | 69.937928.45 | 17.6831.52 | 1067.40.32 | 0.01
2018-11-2725.29 | 77.5221.07 | 69.938026.34 | 16.3731.49 | 1066.340.74 | 0.03
2018-11-2825.29 | 77.5222.13 | 71.838326.34 | 16.3731.46 | 1065.290.53 | 0.02
2018-11-2925.29 | 77.5222.13 | 71.838327.4 | 17.0331.49 | 1066.340.63 | 0.02
2018-11-3025.29 | 77.5222.13 | 71.838227.4 | 17.0331.49 | 1066.340.95 | 0.04

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