The Gleaner
Weather Report

Châteauguay Valley Weather April 2021

Peter Finlayson, Ormstown Weatherman

A deluge of rain on the last day of the month brought April up to normal for precipitation, welcome news given the substantial lack of precipitation over the last few months, particularly in March.

Over 30 mm of rain fell on Friday April 30, depending on your locality, bringing the total for April to 85 mm, which is right on the average. We received 74 mm of rain and 9 cm of snow during the month, and the creeks and streams are now looking full, as they should in springtime.

The average temperature for the month ended up at +8.1 degrees C, a whopping 1.6 degree above normal. April 2021 was the eighth warmest recorded at the Ormstown weather station in the last 56 years.
Most of that increase was observed in the first half of the month, which the weather station in Burlington, Vt. recorded as the third warmest first half of April since 1885 when they started keeping weather records for the region. It’s no surprise then that the leaves on the trees have been very slow to emerge, given the cooler weather in the second half of the month after a very warm start.

The average temperature for May is +14.3 degrees C but the forecast is for temperatures to be slightly cooler than normal, with daytime highs over 20 degrees C only showing up in the last week of the month. The good news for fruit and vegetable growers is that the forecast has nighttime temperatures above zero, so there is low risk of frost.

After some shower activity in the first few days of the month, a good stretch of fair weather is forecast right through to the Victoria Day weekend. Let the planting season begin in earnest!



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