Average Weather in July in Kemijärvi Finland
Daily high temperatures are around 65°F, rarely falling below 53°F or exceeding 77°F. The highest daily average high temperature is 66°F on July 22.
Daily low temperatures are around 51°F, rarely falling below 42°F or exceeding 58°F. The highest daily average low temperature is 52°F on July 23.
For reference, on July 22, the hottest day of the year, temperatures in Kemijärvi typically range from 52°F to 66°F, while on January 25, the coldest day of the year, they range from 3°F to 16°F.
Average High and Low Temperature in July
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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 July
The month of July in Kemijärvi experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 52% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 51% on July 5.
The clearest day of the month is July 5, with clear, mostly clear, or partly cloudy conditions 49% of the time.
For reference, on January 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 86%, while on July 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.
Cloud Cover Categories in July
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Kemijärvi, the chance of a wet day over the course of July is essentially constant, remaining around 37% throughout.
For reference, the year's highest daily chance of a wet day is 38% on July 25, and its lowest chance is 14% on March 3.
Probability of Precipitation in July
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 July in Kemijärvi is essentially constant, remaining about 2.9 inches throughout, and rarely exceeding 4.5 inches or falling below 1.2 inches.
The highest average 31-day accumulation is 2.9 inches on July 15.
Average Monthly Rainfall in July
Due to its extreme latitude, Kemijärvi experiences polar day (also known as the midnight Sun) during the summer. The precise start and end dates of polar day and night vary from year to year and depend on the precise location and elevation of the observer, and the local topography.
In the summer in Kemijärvi during 2021, the Sun is continuously above the horizon for 1.1 months, rising at 1:25 AM on June 4, and not setting again until 1:09 AM on July 8. As such, July begins the month in polar day, which ends before the month is out.
The shortest day of the month is July 31, with 19 hours, 4 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Kemijärvi is 1:21 AM on July 8 and the latest sunrise is 2 hours, 21 minutes later at 3:43 AM on July 31.
The latest sunset is 1:09 AM on July 7 and the earliest sunset is 2 hours, 22 minutes earlier at 10:47 PM on July 31.
Daylight saving time is observed in Kemijärvi during 2021, but it neither starts nor ends during July, so the entire month is in daylight saving time.
Sunrise & Sunset with Twilight in July
The figure below presents a compact representation of key lunar data for July 2021. 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 July
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 in Kemijärvi is essentially constant during July, remaining around 0% throughout.
For reference, on July 15, the muggiest day of the year, there are muggy conditions 0% 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 July
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 in Kemijärvi is essentially constant during July, remaining within 0.2 miles per hour of 4.4 miles per hour throughout.
For reference, on January 24, the windiest day of the year, the daily average wind speed is 6.6 miles per hour, while on August 5, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.
Average Wind Speed in July
The hourly average wind direction in Kemijärvi throughout July is predominantly from the south, with a peak proportion of 33% on July 24.
Wind Direction in July
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 in Kemijärvi typically lasts for 3.8 months (118 days), from around May 21 to around September 16, rarely starting before May 5 or after June 8, and rarely ending before August 29 or after October 4.
The month of July in Kemijärvi is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in July
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 in Kemijärvi are increasing during July, increasing by 287°F, from 236°F to 523°F, over the course of the month.
Growing Degree Days in July
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 in Kemijärvi is gradually decreasing during July, falling by 0.9 kWh, from 5.5 kWh to 4.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Kemijärvi are 66.667 deg latitude, 27.417 deg longitude, and 502 ft elevation.
The topography within 2 miles of Kemijärvi contains only modest variations in elevation, with a maximum elevation change of 381 feet and an average elevation above sea level of 567 feet. Within 10 miles contains only modest variations in elevation (712 feet). Within 50 miles contains significant variations in elevation (1,545 feet).
The area within 2 miles of Kemijärvi is covered by trees (90%), within 10 miles by trees (70%) and water (24%), and within 50 miles by trees (84%).
This report illustrates the typical weather in Kemijärvi, 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
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Kemijärvi.
For each station, the records are corrected for the elevation difference between that station and Kemijärvi according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Kemijärvi is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Kemijärvi and a given station.
The stations contributing to this reconstruction are: Rovaniemi Airport (45%, 71 kilometers, west); Sodankylä Airfield (32%, 88 kilometers, northwest); and Kuusamo Airport (23%, 111 kilometers, southeast).
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 © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
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.