Frost Dates for Stittsville, ON

Based on data from Appleton weather station, 11 miles away

Elevation: 123 m

Frost Dates

Last Spring Frost (50%) May 12

First Fall Frost (50%) October 1

30% Probability

Last Spring Frost May 17

First Fall Frost September 26

Hard Freeze (−2°C)

Last Spring Hard Freeze April 29

First Fall Hard Freeze October 17

45.25°N, 75.92°W © OpenStreetMap

Growing Season

142 Days May 12 to October 1

USDA Hardiness Zone

Zone 4b

Avg. annual minimum: −32 to −29°C

Learn more

Köppen Climate

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

-15° 0° 15° 30°

-10°

Jan

-8°

Feb

-2°

Mar

6°

Apr

13°

May

18°

Jun

21°

Jul

20°

Aug

16°

Sep

9°

Oct

2°

Nov

-5°

Dec

0°C

−2°C

Avg High Avg Temp Avg Low Light Frost (0°C) Hard Frost (−2°C)

Temperature table

Average monthly temperatures (°C)
Month	Avg High	Avg Temp	Avg Low
January	-5°	-10°	-14°
February	-3°	-8°	-13°
March	3°	-2°	-7°
April	11°	6°	0°
May	19°	13°	7°
June	24°	18°	12°
July	27°	21°	15°
August	26°	20°	14°
September	22°	16°	9°
October	14°	9°	4°
November	6°	2°	-3°
December	-1°	-5°	-9°

Precipitation

0 mm 30 mm 60 mm 90 mm

69 mm

Jan

41 mm

Feb

56 mm

Mar

76 mm

Apr

74 mm

May

97 mm

Jun

91 mm

Jul

89 mm

Aug

89 mm

Sep

84 mm

Oct

79 mm

Nov

66 mm

Dec

Precipitation table

Average monthly precipitation (millimeters)
Month	Precipitation
January	69
February	41
March	56
April	76
May	74
June	97
July	91
August	89
September	89
October	84
November	79
December	66

Sunrise / Sunset

Jan: 7:46 AM – 4:42 PM · 8h 55m

Feb: 7:14 AM – 5:24 PM · 10h 10m

Mar: 7:25 AM – 7:03 PM · 11h 37m

Apr: 6:26 AM – 7:43 PM · 13h 17m

May: 5:41 AM – 8:21 PM · 14h 40m

Jun: 5:22 AM – 8:47 PM · 15h 26m

Jul: 5:37 AM – 8:44 PM · 15h 07m

Aug: 6:11 AM – 8:06 PM · 13h 54m

Sep: 6:50 AM – 7:08 PM · 12h 18m

Oct: 7:29 AM – 6:10 PM · 10h 42m

Nov: 7:11 AM – 4:28 PM · 9h 16m

Dec: 7:43 AM – 4:17 PM · 8h 34m

Daylight Eastern Time (ET) Longest: 15h 27m · Shortest: 8h 33m

Sunrise and sunset table

Sunrise, sunset, and daylight on the 15th of each month (Eastern Time (ET))
Month	Sunrise	Sunset	Daylight
January	7:46 AM	4:42 PM	8h 55m
February	7:14 AM	5:24 PM	10h 10m
March	7:25 AM	7:03 PM	11h 37m
April	6:26 AM	7:43 PM	13h 17m
May	5:41 AM	8:21 PM	14h 40m
June	5:22 AM	8:47 PM	15h 26m
July	5:37 AM	8:44 PM	15h 07m
August	6:11 AM	8:06 PM	13h 54m
September	6:50 AM	7:08 PM	12h 18m
October	7:29 AM	6:10 PM	10h 42m
November	7:11 AM	4:28 PM	9h 16m
December	7:43 AM	4:17 PM	8h 34m

Nearby Stations

Drummond Centre, ON May 12 - September 30 Ottawa Macdonald-Cartier Int'L, ON April 29 - October 7 Ottawa Cda, ON April 30 - October 9 Ottawa Cda Rcs, ON May 1 - October 13 Luskville, QC May 18 - September 22 Kemptville Cs, ON May 9 - October 9

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