Average Weather in July in Two Harbors Minnesota, United States
Daily high temperatures increase by 2°F, from 75°F to 77°F, rarely falling below 64°F or exceeding 86°F. The highest daily average high temperature is 77°F on July 25.
Daily low temperatures increase by 3°F, from 54°F to 57°F, rarely falling below 46°F or exceeding 65°F. The highest daily average low temperature is 57°F on July 26.
For reference, on July 19, the hottest day of the year, temperatures in Two Harbors typically range from 57°F to 77°F, while on January 28, the coldest day of the year, they range from 6°F to 23°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 Two Harbors experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 39% to 30%.
The clearest day of the month is July 31, with clear, mostly clear, or partly cloudy conditions 70% of the time.
For reference, on January 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on August 2, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 70%.
Cloud Cover Categories in July
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Two Harbors, the chance of a wet day over the course of July is rapidly decreasing, starting the month at 40% and ending it at 32%.
For reference, the year's highest daily chance of a wet day is 40% on June 21, and its lowest chance is 8% on February 4.
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 Two Harbors is decreasing, starting the month at 3.7 inches, when it rarely exceeds 6.2 inches or falls below 1.5 inches, and ending the month at 2.8 inches, when it rarely exceeds 4.9 inches or falls below 1.2 inches.
Average Monthly Rainfall in July
Over the course of July in Two Harbors, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 54 minutes, implying an average daily decrease of 1 minute, 48 seconds, and weekly decrease of 12 minutes, 36 seconds.
The shortest day of the month is July 31, with 14 hours, 56 minutes of daylight and the longest day is July 1, with 15 hours, 50 minutes of daylight.
Hours of Daylight and Twilight in July
The earliest sunrise of the month in Two Harbors is 5:15 AM on July 1 and the latest sunrise is 29 minutes later at 5:44 AM on July 31.
The latest sunset is 9:05 PM on July 1 and the earliest sunset is 25 minutes earlier at 8:40 PM on July 31.
Daylight saving time is observed in Two Harbors during 2018, but it neither starts nor ends during July, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:11 AM and sets 15 hours, 54 minutes later, at 9:05 PM, while on December 21, the shortest day of the year, it rises at 7:49 AM and sets 8 hours, 30 minutes later, at 4:20 PM.
Sunrise & Sunset with Twilight 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 Two Harbors is gradually increasing during July, rising from 7% to 11% over the course of the month.
The highest chance of a muggy day during July is 12% on July 26.
For reference, on July 26, the muggiest day of the year, there are muggy conditions 12% of the time, while on October 19, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in July
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 Two Harbors is essentially constant during July, remaining within 0.2 miles per hour of 7.8 miles per hour throughout.
For reference, on January 4, the windiest day of the year, the daily average wind speed is 11.7 miles per hour, while on July 28, the calmest day of the year, the daily average wind speed is 7.5 miles per hour.
The lowest daily average wind speed during July is 7.5 miles per hour on July 28.
Average Wind Speed in July
Wind Direction in July
Two Harbors 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 in Two Harbors is very rapidly increasing during July, rising by 12°F, from 47°F to 59°F, over the course of the month.
Average Water Temperature 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 Two Harbors typically lasts for 4.5 months (138 days), from around May 15 to around September 30, rarely starting before April 24 or after June 7, and rarely ending before September 14 or after October 18.
The month of July in Two Harbors 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 Two Harbors are rapidly increasing during July, increasing by 478°F, from 526°F to 1,004°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 Two Harbors is essentially constant during July, remaining within 0.2 kWh of 6.7 kWh throughout.
The highest average daily incident shortwave solar energy during July is 6.8 kWh on July 11.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Two Harbors are 47.023 deg latitude, -91.671 deg longitude, and 640 ft elevation.
The topography within 2 miles of Two Harbors contains only modest variations in elevation, with a maximum elevation change of 449 feet and an average elevation above sea level of 695 feet. Within 10 miles contains only modest variations in elevation (1,175 feet). Within 50 miles also contains very significant variations in elevation (1,480 feet).
The area within 2 miles of Two Harbors is covered by water (40%), artificial surfaces (23%), herbaceous vegetation (21%), and trees (15%), within 10 miles by water (49%) and trees (43%), and within 50 miles by trees (65%) and water (27%).
This report illustrates the typical weather in Two Harbors year round, 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 Two Harbors.
For each station, the records are corrected for the elevation difference between that station and Two Harbors 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 Two Harbors is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Two Harbors and a given station.
The stations contributing to this reconstruction are: Two Harbors (73%, 6 kilometers, northwest); Silver Bay Municipal Airport (21%, 32 kilometers, northeast); and John F Kennedy Memorial Airport (6%, 78 kilometers, southeast).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports 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.