Thornton, Ascension, Saint Helena Climate

Weather: 21.34°C/70.41°F, Wind SW at 7.72 km/h, 60% Humidity, 0% Chance of rain

Saint Helena
(Photo by Misael Moreno on Unsplash)
Contents

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.

Country Saint Helena
City Ascension
Longitude None
Latitude None
Attitude/Elevation 521.3m (1710.3ft)
Local time Monday 17:31
Annual high temperature 26.76ºC (80.17ºF)
Annual low temperature 25.57ºC (78.03ºF)
Average annual precip. 31.33mm (1.23in)
Warmest month April (28.76ºC / 83.77ºF)
Coldest Month September (23.93ºC / 75.07ºF)
Wettest Month July (44.29mm / 1.74in)
Driest Month January (18.41mm / 0.72in)
Number of days with rainfall (≥ 1.0 mm) 150.87 days (41.33%)
Days with no rain 214.13 days (58.67%)
Humidity 82.31%

Climate Thornton: Weather By Month

Month Jan Feb Mar Apr May Jun Jul Aug Sep Nov Oct Dec Year
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) 5.17 4.31 5.65 8.24 10.35 14.85 19.25 22.32 20.88 17.82 12.55 9.48 12.57
Average relative humidity (%) 83.59 83.61 82.73 81.58 80.24 79.08 79.36 81.6 83.48 84.41 84.6 83.44 82.32
Mean monthly sunshine hours 10.68 10.95 11.17 10.7 10.28 10.28 9.9 9.46 9.0 8.8 9.0 9.3 9.96

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
Temperature Max Average Min
Max Temperature 26.34°C (79.41°F) 25.61°C (78.1°F) 25.29°C (77.52°F)
Avg Temperature 25.29°C (77.52°F) 25.18°C (77.32°F) 24.24°C (75.63°F)
Min Temperature 25.29°C (77.52°F) 24.8°C (76.64°F) 24.24°C (75.63°F)
Dew Point Max Average Min
Dew Point 23.18°C (73.72°F) 21.53°C (70.75°F) 20.02°C (68.04°F)
Precipitation Max Average Min Sum
Precipitation 1.79mm | 0.07in 0.89mm | 0.04in 0.21mm | 0.01in 26.67mm | 1.05in
Snowdepth 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in 0.0mm | 0in
Wind Max Average Min
Wind 31.61kmh | 19.64mph 25.75kmh | 16.0mph 17.91kmh | 11.13mph
Gust Wind 45.31kmh | 28.15mph 36.39kmh | 22.61mph 25.29kmh | 15.71mph
Sea Level Pressure Max Average Min
Sea Level Pressure 1.79mb 0.89mb 0.21mb
Thornton

Daily Observations

Time Temperature Dew Point Humidity Wind Speed Pressure Precipitation
November ° C | ° F ° C | ° F % Kph | Mph Hg | Mb Total (mm/in)
2018-11-01 24.24 | 75.63 20.02 | 68.04 78 23.18 | 14.4 31.55 | 1068.45 0.63 | 0.02
2018-11-02 25.29 | 77.52 20.02 | 68.04 77 21.07 | 13.09 31.52 | 1067.4 0.42 | 0.02
2018-11-03 25.29 | 77.52 20.02 | 68.04 77 22.13 | 13.75 31.52 | 1067.4 0.84 | 0.03
2018-11-04 25.29 | 77.52 20.02 | 68.04 77 25.29 | 15.71 31.49 | 1066.34 0.63 | 0.02
2018-11-05 25.29 | 77.52 21.07 | 69.93 79 25.29 | 15.71 31.52 | 1067.4 0.95 | 0.04
2018-11-06 25.29 | 77.52 22.13 | 71.83 80 27.4 | 17.03 31.52 | 1067.4 1.69 | 0.07
2018-11-07 25.29 | 77.52 21.07 | 69.93 80 28.45 | 17.68 31.55 | 1068.45 1.69 | 0.07
2018-11-08 25.29 | 77.52 21.07 | 69.93 79 28.45 | 17.68 31.55 | 1068.45 1.48 | 0.06
2018-11-09 25.29 | 77.52 22.13 | 71.83 82 23.18 | 14.4 31.55 | 1068.45 1.79 | 0.07
2018-11-10 25.29 | 77.52 22.13 | 71.83 85 28.45 | 17.68 31.52 | 1067.4 1.37 | 0.05
2018-11-11 25.29 | 77.52 21.07 | 69.93 81 27.4 | 17.03 31.49 | 1066.34 1.05 | 0.04
2018-11-12 25.29 | 77.52 21.07 | 69.93 79 26.34 | 16.37 31.52 | 1067.4 0.84 | 0.03
2018-11-13 25.29 | 77.52 22.13 | 71.83 82 23.18 | 14.4 31.52 | 1067.4 1.05 | 0.04
2018-11-14 25.29 | 77.52 22.13 | 71.83 83 22.13 | 13.75 31.49 | 1066.34 0.84 | 0.03
2018-11-15 25.29 | 77.52 22.13 | 71.83 83 17.91 | 11.13 31.49 | 1066.34 0.74 | 0.03
2018-11-16 25.29 | 77.52 22.13 | 71.83 84 22.13 | 13.75 31.55 | 1068.45 0.32 | 0.01
2018-11-17 25.29 | 77.52 22.13 | 71.83 85 23.18 | 14.4 31.55 | 1068.45 0.32 | 0.01
2018-11-18 24.24 | 75.63 21.07 | 69.93 82 31.61 | 19.64 31.55 | 1068.45 0.95 | 0.04
2018-11-19 25.29 | 77.52 21.07 | 69.93 82 31.61 | 19.64 31.52 | 1067.4 1.79 | 0.07
2018-11-20 25.29 | 77.52 22.13 | 71.83 84 28.45 | 17.68 31.55 | 1068.45 0.63 | 0.02
2018-11-21 25.29 | 77.52 22.13 | 71.83 84 27.4 | 17.03 31.55 | 1068.45 0.53 | 0.02
2018-11-22 25.29 | 77.52 22.13 | 71.83 84 25.29 | 15.71 31.52 | 1067.4 0.74 | 0.03
2018-11-23 25.29 | 77.52 22.13 | 71.83 84 24.24 | 15.06 31.52 | 1067.4 1.16 | 0.05
2018-11-24 25.29 | 77.52 23.18 | 73.72 85 26.34 | 16.37 31.52 | 1067.4 0.21 | 0.01
2018-11-25 25.29 | 77.52 21.07 | 69.93 81 26.34 | 16.37 31.55 | 1068.45 0.84 | 0.03
2018-11-26 24.24 | 75.63 21.07 | 69.93 79 28.45 | 17.68 31.52 | 1067.4 0.32 | 0.01
2018-11-27 25.29 | 77.52 21.07 | 69.93 80 26.34 | 16.37 31.49 | 1066.34 0.74 | 0.03
2018-11-28 25.29 | 77.52 22.13 | 71.83 83 26.34 | 16.37 31.46 | 1065.29 0.53 | 0.02
2018-11-29 25.29 | 77.52 22.13 | 71.83 83 27.4 | 17.03 31.49 | 1066.34 0.63 | 0.02
2018-11-30 25.29 | 77.52 22.13 | 71.83 82 27.4 | 17.03 31.49 | 1066.34 0.95 | 0.04

Thornton 11 Year Historical Weather Data

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