Climate Insights for Smithfield

Northumberland County, Ontario, Canada

Hottest
July
25°C peak76°F peak
Coldest
January
-6°C low22°F low
Wettest
April
111 mm rain4.4 in rain
Best to Visit
June, July, August
Mild temps & low rain

Climate Overview

The climate in Smithfield is cool. The average annual temperature is 9°C and approximately 1,041 mm of precipitation falls per year. Smithfield receives a notable amount of rainfall throughout the year, including during its driest month. Smithfield is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, March, when temperatures can drop to -6°C. Snowfall occurs from January to December, with around 151cm accumulating over the season.The climate in Smithfield is cool. The average annual temperature is 48°F and approximately 41 in of precipitation falls per year. Smithfield receives a notable amount of rainfall throughout the year, including during its driest month. Smithfield is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, March, when temperatures can drop to 22°F. Snowfall occurs from January to December, with around 60in accumulating over the season.

Temperature

-10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: 0°Average: -3°Min: -6°FebMax: 0°Average: -3°Min: -5°MarMax: 3°Average: 0°Min: -2°AprMax: 8°Average: 5°Min: 3°MayMax: 14°Average: 11°Min: 9°JunMax: 20°Average: 17°Min: 15°JulMax: 25°Average: 22°Min: 20°AugMax: 24°Average: 22°Min: 19°SepMax: 21°Average: 18°Min: 16°OctMax: 15°Average: 12°Min: 10°NovMax: 8°Average: 5°Min: 3°DecMax: 3°Average: 0°Min: -2°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°F80°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 31°FAverage: 26°FMin: 22°FFebMax: 33°FAverage: 27°FMin: 22°FMarMax: 38°FAverage: 33°FMin: 29°FAprMax: 47°FAverage: 41°FMin: 37°FMayMax: 58°FAverage: 52°FMin: 48°FJunMax: 68°FAverage: 63°FMin: 59°FJulMax: 76°FAverage: 72°FMin: 67°FAugMax: 76°FAverage: 71°FMin: 67°FSepMax: 70°FAverage: 65°FMin: 61°FOctMax: 58°FAverage: 54°FMin: 50°FNovMax: 46°FAverage: 42°FMin: 38°FDecMax: 37°FAverage: 32°FMin: 29°F
Max
Average
Min

Temperatures in Smithfield vary considerably across the year, with a 31°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 25°C with a mean of 22°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -3°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.Temperatures in Smithfield vary considerably across the year, with a 54°F difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 76°F with a mean of 72°F. The coldest month is January, when overnight lows fall to 22°F and the daily average is 26°F. Daily temperature variation is modest, with an average difference of 9°F between highs and lows. The sharpest temperature change occurs between October and November, with a 12°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mm125mm150mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 88mmSnow: 40mmFebPrecipitation: 81mmSnow: 41mmMarPrecipitation: 89mmSnow: 18mmAprPrecipitation: 111mmSnow: 7mmMayPrecipitation: 81mmSnow: 0mmJunPrecipitation: 70mmSnow: 0mmJulPrecipitation: 75mmSnow: 0mmAugPrecipitation: 77mmSnow: 0mmSepPrecipitation: 73mmSnow: 0mmOctPrecipitation: 108mmSnow: 0mmNovPrecipitation: 86mmSnow: 11mmDecPrecipitation: 104mmSnow: 34mm
Precipitation
Snow
0in2in4in6in8in10in12in14in16inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 3.4inSnow (in): 16inFebPrecipitation: 3.2inSnow (in): 16inMarPrecipitation: 3.5inSnow (in): 7inAprPrecipitation: 4.4inSnow (in): 3inMayPrecipitation: 3.2inSnow (in): 0inJunPrecipitation: 2.7inSnow (in): 0inJulPrecipitation: 2.9inSnow (in): 0inAugPrecipitation: 3inSnow (in): 0inSepPrecipitation: 2.9inSnow (in): 0inOctPrecipitation: 4.2inSnow (in): 0inNovPrecipitation: 3.4inSnow (in): 4inDecPrecipitation: 4.1inSnow (in): 14in
Precipitation
Snow (in)

Smithfield is a moderately rainy area, receiving approximately 1,041 mm of precipitation annually, which averages out to around 87 mm per month. The wettest month is April, averaging 111 mm of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 70 mm. That's 41 mm less than April, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 151cm accumulating over the season. February typically sees the most snow at around 41cm.Smithfield is a moderately rainy area, receiving approximately 41 in of precipitation annually, which averages out to around 3.4 in per month. The wettest month is April, averaging 4.4 in of rainfall. October and December also tend to see above-average precipitation. The driest month is June, with just 2.8 in. That's 1.6 in less than April, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 60in accumulating over the season. February typically sees the most snow at around 16in.

Wind

0km/h5km/h10km/h15km/h20km/h25km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 20km/hFebWind Speed: 20km/hMarWind Speed: 18km/hAprWind Speed: 17km/hMayWind Speed: 14km/hJunWind Speed: 14km/hJulWind Speed: 13km/hAugWind Speed: 14km/hSepWind Speed: 14km/hOctWind Speed: 18km/hNovWind Speed: 20km/hDecWind Speed: 21km/h
Wind Speed
0mph5mph10mph15mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 12mphFebWind Speed: 12mphMarWind Speed: 11mphAprWind Speed: 11mphMayWind Speed: 9mphJunWind Speed: 9mphJulWind Speed: 8mphAugWind Speed: 8mphSepWind Speed: 9mphOctWind Speed: 11mphNovWind Speed: 12mphDecWind Speed: 13mph
Wind Speed

Smithfield is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 21km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 20km/h in winter, 17km/h in spring, 14km/h in summer, 17km/h in autumn.Smithfield is moderately windy, with an average annual wind speed of 11mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is December, averaging 13mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 8mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13mph in winter, 10mph in spring, 8mph in summer, 11mph in autumn.

Best Time to Visit

Jan-3°26°F
Feb-3°27°F
Mar0°33°F
Apr5°41°F
May11°52°F
Jun17°63°F
Jul22°72°F
Aug22°71°F
Sep18°65°F
Oct12°54°F
Nov5°42°F
Dec0°32°F

The best time to visit Smithfield is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 73 mm per month. By contrast, January can be quite cold with temperatures dropping to -6°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Smithfield is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 68°F with modest rainfall averaging 2.9 in per month. By contrast, January can be quite cold with temperatures dropping to 22°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Smithfield based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Smithfield based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-6 °C22 °F
0 °C31 °F
20 km/h12 mph
88 mm3.4 in
40 cm16 in
Feb
-5 °C22 °F
0 °C33 °F
20 km/h12 mph
81 mm3.2 in
41 cm16 in
Mar
-2 °C29 °F
3 °C38 °F
18 km/h11 mph
89 mm3.5 in
18 cm7 in
Apr
3 °C37 °F
8 °C47 °F
17 km/h11 mph
111 mm4.4 in
7 cm3 in
May
9 °C48 °F
14 °C58 °F
14 km/h9 mph
81 mm3.2 in
0 cm0 in
Jun
15 °C59 °F
20 °C68 °F
14 km/h9 mph
70 mm2.7 in
0 cm0 in
Jul
20 °C67 °F
25 °C76 °F
13 km/h8 mph
75 mm2.9 in
0 cm0 in
Aug
19 °C67 °F
24 °C76 °F
14 km/h8 mph
77 mm3 in
0 cm0 in
Sep
16 °C61 °F
21 °C70 °F
14 km/h9 mph
73 mm2.9 in
0 cm0 in
OctCurrent
10 °C50 °F
15 °C58 °F
18 km/h11 mph
108 mm4.2 in
0 cm0 in
Nov
3 °C38 °F
8 °C46 °F
20 km/h12 mph
86 mm3.4 in
11 cm4 in
Dec
-2 °C29 °F
3 °C37 °F
21 km/h13 mph
104 mm4.1 in
34 cm14 in