1. WeatherSpark.com
  2. Canada
  3. Upsala, Ont.

December Weather at Upsala, Ont. Canada

Daily high temperatures decrease by 9°F, from 23°F to 14°F, rarely falling below -4°F or exceeding 36°F.

Daily low temperatures decrease by 12°F, from 8°F to -4°F, rarely falling below -25°F or exceeding 27°F.

For reference, on July 23, the hottest day of the year, temperatures at Upsala, Ont. typically range from 53°F to 74°F, while on January 15, the coldest day of the year, they range from -6°F to 13°F.

Average High and Low Temperature in December at Upsala, Ont.

Average High and Low Temperature in December at Upsala, Ont.Dec1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131-30°F-30°F-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°FNovJanDec 123°FDec 123°F8°F8°FDec 3114°FDec 3114°F-4°F-4°FDec 1119°FDec 1119°F3°F3°FDec 2116°FDec 2116°F-1°F-1°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in December at Upsala, Ont.

Average Hourly Temperature in December at Upsala, Ont.Dec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJanfrigidfreezingvery cold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Yekaterinburg, Russia (4,941 miles away); Ridder, Kazakhstan (5,567 miles); and Krasnoyarsk, Russia (5,182 miles) are the far-away foreign places with temperatures most similar to Upsala, Ont. (view comparison).

Map
Marker
© OpenStreetMap contributors

Compare Upsala, Ont. to another city:

Map

The month of December at Upsala, Ont. experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 74% to 79%.

The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 26% of the time.

For reference, on January 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 80%, while on August 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.

Cloud Cover Categories in December at Upsala, Ont.

Cloud Cover Categories in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 126%Dec 126%Dec 3121%Dec 3121%Dec 1124%Dec 1124%Dec 2122%Dec 2122%clearpartly cloudymostly cloudyovercastmostly clear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Upsala, Ont., the chance of a wet day over the course of December is gradually decreasing, starting the month at 12% and ending it at 9%.

For reference, the year's highest daily chance of a wet day is 36% on July 6, and its lowest chance is 7% on February 3.

Over the course of December at Upsala, Ont., the chance of a day with only rain remains an essentially constant 1% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 8% throughout.

Probability of Precipitation in December at Upsala, Ont.

Probability of Precipitation in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%NovJanDec 112%Dec 112%Dec 319%Dec 319%Dec 119%Dec 119%Dec 219%Dec 219%snowmixedrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during December at Upsala, Ont. is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.7 inches or falling below -0.0 inches.

Average Monthly Rainfall in December at Upsala, Ont.

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day snowfall during December at Upsala, Ont. is gradually decreasing, starting the month at 5.2 inches, when it rarely exceeds 11.1 inches or falls below 0.5 inches, and ending the month at 4.5 inches, when it rarely exceeds 9.7 inches or falls below 0.6 inches.

Average Monthly Snowfall in December at Upsala, Ont.

The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Over the course of December at Upsala, Ont., the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 13 minutes of daylight and the longest day is December 1, with 8 hours, 31 minutes of daylight.

Hours of Daylight and Twilight in December at Upsala, Ont.

Hours of Daylight and Twilight in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 218 hr, 13 minDec 218 hr, 13 minnightnightdaydayDec 18 hr, 31 minDec 18 hr, 31 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month at Upsala, Ont. is 8:35 AM on December 1 and the latest sunrise is 21 minutes later at 8:56 AM on December 31.

The earliest sunset is 5:04 PM on December 11 and the latest sunset is 10 minutes later at 5:14 PM on December 31.

Daylight saving time is observed at Upsala, Ont. during 2024, but it neither starts nor ends during December, so the entire month is in daylight saving time.

For reference, on June 20, the longest day of the year, the Sun rises at 5:57 AM and sets 16 hours, 13 minutes later, at 10:09 PM, while on December 21, the shortest day of the year, it rises at 8:53 AM and sets 8 hours, 13 minutes later, at 5:06 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in December at Upsala, Ont.

Sunrise & Sunset with Twilight and Daylight Saving Time in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNovJan8:35 AM8:35 AMDec 15:06 PMDec 15:06 PM8:56 AM8:56 AMDec 315:14 PMDec 315:14 PM8:46 AM8:46 AMDec 115:04 PMDec 115:04 PM8:53 AM8:53 AMDec 215:06 PMDec 215:06 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of December. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in December at Upsala, Ont.

Solar Elevation and Azimuth in December at Upsala, Ont.Dec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJan0010102000101020
northeastsouthwest
Solar elevation and azimuth over the course of December 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for December 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in December at Upsala, Ont.

Moon Rise, Set & Phases in December at Upsala, Ont.Dec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 18:48 AMNov 18:48 AMNov 154:29 PMNov 154:29 PMDec 11:22 AMDec 11:22 AMDec 154:02 AMDec 154:02 AMDec 305:28 PMDec 305:28 PMJan 135:28 PMJan 135:28 PMJan 297:37 AMJan 297:37 AM9:07 AM9:07 AM6:24 PM6:24 PM4:48 PM4:48 PM9:36 AM9:36 AM9:29 AM9:29 AM4:52 PM4:52 PM3:57 PM3:57 PM9:44 AM9:44 AM9:21 AM9:21 AM4:32 PM4:32 PM4:57 PM4:57 PM9:50 AM9:50 AM9:08 AM9:08 AM6:06 PM6:06 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Dec 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
0%9:29 AMSE4:52 PMSW-1:11 PMS245,283 mi
2
2%10:34 AMSE5:41 PMSW-2:08 PMS243,196 mi
3
7%11:28 AMSE6:45 PMSW-3:06 PMS241,061 mi
4
13%12:09 PMSE7:59 PMSW-4:04 PMS238,913 mi
5
22%12:39 PMSE9:19 PMWSW-4:59 PMS236,773 mi
6
32%1:02 PMESE10:40 PMWSW-5:51 PMS234,657 mi
7
43%1:20 PMESE--6:40 PMS232,605 mi
8
50%-12:01 AMWSW1:36 PME7:27 PMS230,689 mi
9
66%-1:22 AMW1:51 PME8:14 PMS229,026 mi
10
77%-2:44 AMW2:07 PMENE9:02 PMS227,771 mi
11
86%-4:08 AMWNW2:24 PMENE9:53 PMS227,096 mi
12
93%-5:35 AMWNW2:47 PMENE10:47 PMS227,163 mi
13
98%-7:04 AMNW3:16 PMNE11:46 PMS228,080 mi
14
99%-8:29 AMNW3:57 PMNE--
15
100%-9:44 AMNW4:54 PMNE12:48 AMS229,862 mi
16
99%-10:42 AMNW6:04 PMNE1:50 AMS232,415 mi
17
95%-11:23 AMNW7:21 PMNE2:49 AMS235,535 mi
18
89%-11:52 AMNW8:40 PMENE3:44 AMS238,950 mi
19
82%-12:13 PMWNW9:56 PMENE4:33 AMS242,361 mi
20
73%-12:29 PMWNW11:08 PMENE5:18 AMS245,487 mi
21
64%-12:42 PMW-5:59 AMS248,090 mi
22
50%12:16 AME12:55 PMW-6:38 AMS249,991 mi
23
45%1:24 AME1:06 PMW-7:17 AMS251,079 mi
24
35%2:31 AMESE1:19 PMWSW-7:56 AMS251,314 mi
25
26%3:39 AMESE1:34 PMWSW-8:37 AMS250,725 mi
26
18%4:49 AMESE1:52 PMWSW-9:21 AMS249,401 mi
27
11%6:02 AMSE2:16 PMSW-10:09 AMS247,483 mi
28
5%7:14 AMSE2:48 PMSW-11:01 AMS245,153 mi
29
2%8:22 AMSE3:33 PMSW-11:57 AMS242,610 mi
30
0%9:21 AMSE4:32 PMSW-12:57 PMS240,052 mi
31
1%10:07 AMSE5:45 PMSW-1:56 PMS237,655 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy at Upsala, Ont. is essentially constant during December, remaining around 0% throughout.

For reference, on July 20, the muggiest day of the year, there are muggy conditions 7% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in December at Upsala, Ont.

Humidity Comfort Levels in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 10%Dec 10%Dec 310%Dec 310%Dec 110%Dec 110%Dec 210%Dec 210%drydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed at Upsala, Ont. is essentially constant during December, remaining around 5.5 miles per hour throughout.

For reference, on April 1, the windiest day of the year, the daily average wind speed is 5.9 miles per hour, while on July 27, the calmest day of the year, the daily average wind speed is 4.5 miles per hour.

Average Wind Speed in December at Upsala, Ont.

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Upsala, Ont. throughout December is predominantly from the west, with a peak proportion of 42% on December 31.

Wind Direction in December at Upsala, Ont.

Wind Direction in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJanwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Upsala, Ont. is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature at Upsala, Ont. is gradually decreasing during December, falling by 4°F, from 41°F to 37°F, over the course of the month.

Average Water Temperature in December at Upsala, Ont.

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season at Upsala, Ont. typically lasts for 3.3 months (103 days), from around June 2 to around September 13, rarely starting before May 15 or after June 22, and rarely ending before August 26 or after September 30.

The month of December at Upsala, Ont. is reliably fully outside of the growing season.

Time Spent in Various Temperature Bands and the Growing Season in December at Upsala, Ont.

Time Spent in Various Temperature Bands and the Growing Season in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan-0%Dec 16-0%Dec 160%Nov 220%Nov 22frigidfreezingvery coldcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days at Upsala, Ont. are essentially constant during December, remaining around 1,434°F throughout.

Growing Degree Days in December at Upsala, Ont.

The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy at Upsala, Ont. is essentially constant during December, remaining within 0.1 kWh of 1.0 kWh throughout.

The lowest average daily incident shortwave solar energy during December is 0.9 kWh on December 19.

Average Daily Incident Shortwave Solar Energy in December at Upsala, Ont.

Average Daily Incident Shortwave Solar Energy in December at Upsala, Ont.Dec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWhNovJanDec 190.9 kWhDec 190.9 kWhDec 11.0 kWhDec 11.0 kWhDec 311.0 kWhDec 311.0 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Upsala, Ont. are 49.033 deg latitude, -90.467 deg longitude, and 1,591 ft elevation.

The topography within 2 miles of Upsala, Ont. contains only modest variations in elevation, with a maximum elevation change of 112 feet and an average elevation above sea level of 1,594 feet. Within 10 miles also contains only modest variations in elevation (230 feet). Within 50 miles contains only modest variations in elevation (968 feet).

The area within 2 miles of Upsala, Ont. is covered by trees (97%), within 10 miles by trees (90%), and within 50 miles by trees (90%).

This report illustrates the typical weather at Upsala, Ont., based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

Upsala, Ont. has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Atikokan Automated Reporting Station, Thunder Bay, Thunder Bay International Airport, Welcome Island, Sioux Lookout Airport, Armstrong Airport, Cameron Falls, and Scotts Seaplane Base.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.