Markham climate

Markham Weather in April

NASA POWER reanalysis for the half-degree grid cell around Markham, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 7°C on April 1 to 14°C on April 30, and lows from -2°C to 3°C. Normal precipitation for the month is 63 mm over about 12 wet days.

April day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Markham, in °C, with the record for each date.-20-100102030151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

April at a glance

Average high
10°C
Average low
0°C
Precipitation
63 mm
Reanalysis high
24°CApr 16, 2002
Reanalysis low
-14°CApr 6, 2003
Daylight
12 h 46 min to 14 h 09 min
Cloud cover
69%
Humidity
78%
Dew point
1°C
Wind
18.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Apr 17°C-2°C17°C 2010-7°C 200340%
Apr 28°C-2°C23°C 2010-5°C 199640%
Apr 38°C-2°C21°C 2010-7°C 201640%
Apr 48°C-1°C17°C 2011-9°C 201640%
Apr 58°C-1°C19°C 2010-11°C 201642%
Apr 68°C-1°C19°C 1997-14°C 200343%
Apr 78°C-1°C23°C 1991-10°C 200343%
Apr 89°C-1°C22°C 1991-8°C 201842%
Apr 99°C-1°C18°C 1991-9°C 199742%
Apr 109°C-1°C21°C 2017-9°C 201643%
Apr 119°C-1°C20°C 2011-4°C 200740%
Apr 1210°C0°C21°C 2001-5°C 199239%
Apr 1310°C0°C19°C 2015-8°C 199240%
Apr 1410°C0°C18°C 2014-5°C 201840%
Apr 1511°C0°C23°C 2003-6°C 201440%
Apr 1611°C1°C24°C 2002-8°C 201439%
Apr 1711°C1°C22°C 2002-4°C 200340%
Apr 1811°C1°C22°C 2008-4°C 200141%
Apr 1912°C1°C23°C 2005-4°C 200142%
Apr 2012°C1°C21°C 2006-4°C 202040%
Apr 2112°C1°C20°C 2007-3°C 201339%
Apr 2212°C1°C21°C 2007-4°C 202038%
Apr 2312°C2°C22°C 2001-4°C 202039%
Apr 2413°C2°C22°C 1994-3°C 199940%
Apr 2513°C2°C23°C 2009-3°C 201540%
Apr 2613°C2°C22°C 1994-3°C 199642%
Apr 2713°C2°C24°C 2009-3°C 199641%
Apr 2813°C3°C21°C 2003-3°C 201240%
Apr 2914°C3°C21°C 2004-2°C 200839%
Apr 3014°C3°C22°C 2001-3°C 200837%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Markham, in percent.010203040501102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (EDT).

April 1
sunrise 6:58 AM, sunset 7:44 PM
April 30
sunrise 6:10 AM, sunset 8:19 PM

Every day of April: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.