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Average Weather in April in Walker Michigan, United States

Daily low temperatures increase by 11°F, from 33°F to 44°F, rarely falling below 22°F or exceeding 56°F.

For reference, on July 19, the hottest day of the year, temperatures in Walker typically range from 63°F to 82°F, while on January 29, the coldest day of the year, they range from 18°F to 30°F.

Average High and Low Temperature in April

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 April. 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 April

Average Hourly Temperature in April in Walker1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM4 AM8 AM12 PM4 PM8 PM12 AMMarMayfreezingvery coldcoldcoolcoolcomfortablefreezing
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Kryvyi Rih, Ukraine (5,153 miles away) and Vysotskoye, Russia (5,591 miles) are the far-away foreign places with temperatures most similar to Walker (view comparison).

Clouds

The month of April in Walker experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 54% throughout the month.

The clearest day of the month is April 25, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on January 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in April

Cloud Cover Categories in April in Walker181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 145%Apr 145%Apr 3047%Apr 3047%Apr 1146%Apr 1146%Apr 2147%Apr 2147%clearmostly clearpartly cloudymostly cloudyovercast
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Walker, the chance of a wet day over the course of April is gradually increasing, starting the month at 26% and ending it at 29%.

For reference, the year's highest daily chance of a wet day is 32% on September 21, and its lowest chance is 17% on February 8.

Over the course of April in Walker, the chance of a day with only rain increases from 23% to 29%, 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 1% throughout.

Probability of Precipitation in April

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 April in Walker is increasing, starting the month at 2.3 inches, when it rarely exceeds 3.8 inches or falls below 0.9 inches, and ending the month at 3.0 inches, when it rarely exceeds 4.8 inches or falls below 1.2 inches.

Average Monthly Rainfall in April

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 liquid-equivalent snowfall.

Snowfall

We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day liquid-equivalent snowfall during April in Walker is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.

Average Monthly Liquid-Equivalent Snowfall in April

The average liquid-equivalent 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.

Sun

Over the course of April in Walker, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 20 minutes, implying an average daily increase of 2 minutes, 46 seconds, and weekly increase of 19 minutes, 22 seconds.

The shortest day of the month is April 1, with 12 hours, 45 minutes of daylight and the longest day is April 30, with 14 hours, 5 minutes of daylight.

Hours of Daylight and Twilight in April

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 latest sunrise of the month in Walker is 7:24 AM on April 1 and the earliest sunrise is 47 minutes earlier at 6:37 AM on April 30.

The earliest sunset is 8:09 PM on April 1 and the latest sunset is 34 minutes later at 8:43 PM on April 30.

Daylight saving time is observed in Walker during 2017, but it neither starts nor ends during April, so the entire month is in daylight saving time.

For reference, on June 21, the longest day of the year, the Sun rises at 6:04 AM and sets 15 hours, 22 minutes later, at 9:25 PM, while on December 21, the shortest day of the year, it rises at 8:11 AM and sets 9 hours, 0 minutes later, at 5:11 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in April

The solar day over the course of April. 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.

Humidity

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 Walker is essentially constant during April, remaining around 0% throughout.

For reference, on July 28, the muggiest day of the year, there are muggy conditions 36% 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 April

Humidity Comfort Levels in April in Walker181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%10%20%30%40%50%60%70%80%90%100%MarMayApr 10%Apr 10%Apr 301%Apr 301%Apr 110%Apr 110%Apr 210%Apr 210%drydryhumidhumidcomfortablecomfortablemuggymuggy
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Walker is decreasing during April, decreasing from 12.3 miles per hour to 11.2 miles per hour over the course of the month.

For reference, on January 12, the windiest day of the year, the daily average wind speed is 13.1 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.0 miles per hour.

Average Wind Speed in April

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 in Walker throughout April is predominantly from the west, with a peak proportion of 27% on April 30.

Wind Direction in April

Wind Direction in April in Walker181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMaywestsoutheastnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Walker 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 Walker is gradually increasing during April, rising by 3°F, from 36°F to 40°F, over the course of the month.

Average Water Temperature in April

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

Growing Season

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 Walker typically lasts for 5.5 months (167 days), from around April 29 to around October 13, rarely starting before April 11 or after May 18, and rarely ending before September 26 or after October 31.

During April in Walker, the chance that a given day is within the growing season is very rapidly increasing rising from 2% to 52% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in April

Time Spent in Various Temperature Bands and the Growing Season in April in Walker181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%MarMayApr 12%Apr 12%52%Apr 3052%Apr 30Apr 1110%Apr 1110%Apr 2129%Apr 2129%90%May 1890%May 18freezingvery coldcoldcoolwarmcomfortablefrigid
The percentage of time spent in various temperature bands: 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 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 in Walker are gradually increasing during April, increasing by 112°F, from 33°F to 145°F, over the course of the month.

Growing Degree Days in April

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

Solar Energy

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 Walker is increasing during April, rising by 1.3 kWh, from 4.5 kWh to 5.8 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in April

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Walker are 43.001 deg latitude, -85.768 deg longitude, and 732 ft elevation.

The topography within 2 miles of Walker contains only modest variations in elevation, with a maximum elevation change of 135 feet and an average elevation above sea level of 736 feet. Within 10 miles also contains only modest variations in elevation (407 feet). Within 50 miles contains only modest variations in elevation (787 feet).

The area within 2 miles of Walker is covered by artificial surfaces (64%), cropland (21%), and trees (14%), within 10 miles by artificial surfaces (49%) and cropland (41%), and within 50 miles by cropland (41%) and trees (31%).

Data Sources

This report illustrates the typical weather in Walker 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Walker.

For each station, the records are corrected for the elevation difference between that station and Walker 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 Walker is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Walker and a given station.

The stations contributing to this reconstruction are: Gerald R. Ford International Airport (45%, 24 kilometers, southeast); West Michigan Regional Airport (22%, 39 kilometers, southwest); Muskegon County Airport (19%, 43 kilometers, northwest); and Fremont Municipal Airport (14%, 52 kilometers, north).

Other Data

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.

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.