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September Weather in Roslyakovo Russia

Daily high temperatures decrease by 9°F, from 53°F to 44°F, rarely falling below 37°F or exceeding 63°F.

Daily low temperatures decrease by 6°F, from 42°F to 36°F, rarely falling below 28°F or exceeding 49°F.

For reference, on July 23, the hottest day of the year, temperatures in Roslyakovo typically range from 48°F to 62°F, while on January 25, the coldest day of the year, they range from 6°F to 19°F.

Average High and Low Temperature in September in Roslyakovo

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 September. 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 September in Roslyakovo

Average Hourly Temperature in September in RoslyakovoSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctfreezingvery coldcoldcool
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.

Chevak, Alaska, United States (3,371 miles away) and Sutton-Alpine, Alaska, United States (3,401 miles) are the far-away foreign places with temperatures most similar to Roslyakovo (view comparison).

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The month of September in Roslyakovo experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 65% to 76%.

The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 35% of the time.

For reference, on December 27, 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 43%.

Cloud Cover Categories in September in Roslyakovo

Cloud Cover Categories in September in RoslyakovoSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 135%Sep 135%Sep 3024%Sep 3024%Sep 1131%Sep 1131%Sep 2128%Sep 2128%clearmostly clearpartly cloudymostly cloudyovercast
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. In Roslyakovo, the chance of a wet day over the course of September is essentially constant, remaining around 29% throughout.

For reference, the year's highest daily chance of a wet day is 37% on July 14, and its lowest chance is 16% on March 11.

Over the course of September in Roslyakovo, the chance of a day with only rain remains an essentially constant 28% 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 0% throughout.

Probability of Precipitation in September in Roslyakovo

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 September in Roslyakovo is gradually decreasing, starting the month at 2.1 inches, when it rarely exceeds 3.6 inches or falls below 0.9 inches, and ending the month at 1.8 inches, when it rarely exceeds 2.9 inches or falls below 0.6 inches.

Average Monthly Rainfall in September in Roslyakovo

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.

Due to its extreme latitude, Roslyakovo experiences polar day (also known as the midnight Sun) during the summer and polar night during the winter. These are periods of time in which the sun is continuously above or below the horizon for more than one day. 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.

Neither polar day nor polar night occur during the month of September.

Over the course of September in Roslyakovo, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 3 hours, 59 minutes, implying an average daily decrease of 8 minutes, 14 seconds, and weekly decrease of 57 minutes, 36 seconds.

The shortest day of the month is September 30, with 11 hours, 14 minutes of daylight and the longest day is September 1, with 15 hours, 13 minutes of daylight.

Hours of Daylight and Twilight in September in Roslyakovo

Hours of Daylight and Twilight in September in RoslyakovoSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 19 minSep 2212 hr, 19 minSep 115 hr, 13 minSep 115 hr, 13 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 in Roslyakovo is 5:09 AM on September 1 and the latest sunrise is 1 hour, 50 minutes later at 6:58 AM on September 30.

The latest sunset is 8:22 PM on September 1 and the earliest sunset is 2 hours, 9 minutes earlier at 6:13 PM on September 30.

Daylight saving time is not observed in Roslyakovo during 2024.

Sunrise & Sunset with Twilight in September in Roslyakovo

Sunrise & Sunset with Twilight in September in RoslyakovoSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct5:09 AM5:09 AMSep 18:22 PMSep 18:22 PM6:58 AM6:58 AMSep 306:13 PMSep 306:13 PM5:47 AM5:47 AMSep 117:37 PMSep 117:37 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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 September in Roslyakovo

Solar Elevation and Azimuth in September in RoslyakovoSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202000010102030
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 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 September in Roslyakovo

Moon Rise, Set & Phases in September in RoslyakovoSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 42:14 PMAug 42:14 PMAug 199:26 PMAug 199:26 PMSep 34:56 AMSep 34:56 AMSep 185:35 AMSep 185:35 AMOct 29:50 PMOct 29:50 PMOct 172:27 PMOct 172:27 PM12:00 AM12:00 AM11:42 PM11:42 PM10:00 PM10:00 PM4:32 AM4:32 AM5:06 AM5:06 AM8:18 PM8:18 PM7:22 PM7:22 PM6:19 AM6:19 AM6:17 AM6:17 AM5:54 PM5:54 PM4:24 PM4:24 PM10:36 AM10:36 AM
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.
Sep 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
3%12:10 AMNNE9:17 PMNW-11:31 AMS248,635 mi
2
0%3:05 AMNE8:43 PMWNW-12:14 PMS250,144 mi
3
0%5:06 AMENE8:18 PMWNW-12:53 PMS251,304 mi
4
2%6:55 AME7:56 PMW-1:32 PMS252,075 mi
5
5%8:39 AME7:34 PMWSW-2:10 PMS252,401 mi
6
10%10:25 AMESE7:10 PMWSW-2:50 PMS252,208 mi
7
17%12:22 PMSE6:39 PMSW-3:31 PMS251,421 mi
8
25%2:52 PMSSE5:38 PMSSW-4:15 PMS249,974 mi
9
34%5:03 PMS247,831 mi
10
44%5:56 PMS245,006 mi
11
50%6:54 PMS241,576 mi
12
65%7:55 PMS237,705 mi
13
75%8:58 PMS233,644 mi
14
85%9:59 PMS229,718 mi
15
92%8:42 PMSSE--10:58 PMS226,292 mi
16
98%-1:14 AMSSW7:53 PMSE11:53 PMS223,716 mi
17
99%-3:56 AMWSW7:22 PMESE--
18
100%-6:19 AMW6:55 PME12:45 AMS222,267 mi
19
99%-8:37 AMWNW6:27 PMENE1:36 AMS222,096 mi
20
95%-11:05 AMNW5:52 PMNE2:27 AMS223,198 mi
21
88%-2:18 PMNNW4:35 PMNNE3:18 AMS225,421 mi
22
79%4:12 AMS228,494 mi
23
68%5:08 AMS232,086 mi
24
50%6:05 AMS235,863 mi
25
46%7:01 AMS239,534 mi
26
35%7:54 AMS242,884 mi
27
26%8:44 AMS245,777 mi
28
18%-7:45 PMNNW-9:30 AMS248,149 mi
29
11%12:33 AMNE7:05 PMNW-10:13 AMS249,987 mi
30
5%2:42 AMENE6:38 PMWNW-10:53 AMS251,313 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 in Roslyakovo is essentially constant during September, remaining around 0% throughout.

For reference, on July 4, 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 September in Roslyakovo

Humidity Comfort Levels in September in RoslyakovoSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 10%Sep 10%Sep 300%Sep 300%Sep 110%Sep 110%Sep 210%Sep 210%drydrycomfortablecomfortable
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 in Roslyakovo is gradually increasing during September, increasing from 5.2 miles per hour to 6.2 miles per hour over the course of the month.

For reference, on January 31, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on August 13, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.

Average Wind Speed in September in Roslyakovo

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 Roslyakovo throughout September is predominantly from the south, with a peak proportion of 39% on September 15.

Wind Direction in September in Roslyakovo

Wind Direction in September in RoslyakovoSWSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctwestsoutheastnorth
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).

Roslyakovo 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 Roslyakovo is gradually decreasing during September, falling by 3°F, from 49°F to 46°F, over the course of the month.

Average Water Temperature in September in Roslyakovo

Average Water Temperature in September in RoslyakovoSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303040°F40°F42°F42°F44°F44°F46°F46°F48°F48°F50°F50°F52°F52°F54°F54°FAugOctSep 149°FSep 149°FSep 3046°FSep 3046°FSep 1148°FSep 1148°FSep 2147°FSep 2147°F
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 in Roslyakovo typically lasts for 3.5 months (107 days), from around May 28 to around September 12, rarely starting before May 9 or after June 15, and rarely ending before August 19 or after October 6.

During September in Roslyakovo, the chance that a given day is within the growing season is very rapidly decreasing falling from 71% to 18% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in September in Roslyakovo

Time Spent in Various Temperature Bands and the Growing Season in September in Roslyakovogrowing seasonSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct71%Sep 171%Sep 1Sep 3018%Sep 3018%52%Sep 1152%Sep 11Sep 2132%Sep 2132%90%Aug 1990%Aug 19freezingvery coldcoldcoolcomfortablefrigid
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 in Roslyakovo are essentially constant during September, remaining within 13°F of 447°F throughout.

Growing Degree Days in September in Roslyakovo

The average growing degree days accumulated over the course of September, 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 in Roslyakovo is decreasing during September, falling by 1.5 kWh, from 2.4 kWh to 1.0 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in September in Roslyakovo

Average Daily Incident Shortwave Solar Energy in September in RoslyakovoSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh6.0 kWh6.0 kWhAugOctSep 12.4 kWhSep 12.4 kWhSep 301.0 kWhSep 301.0 kWhSep 111.9 kWhSep 111.9 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 Roslyakovo are 69.043 deg latitude, 33.199 deg longitude, and 43 ft elevation.

The topography within 2 miles of Roslyakovo contains significant variations in elevation, with a maximum elevation change of 771 feet and an average elevation above sea level of 206 feet. Within 10 miles contains significant variations in elevation (1,145 feet). Within 50 miles contains very significant variations in elevation (2,008 feet).

The area within 2 miles of Roslyakovo is covered by trees (46%), water (12%), and artificial surfaces (10%), within 10 miles by trees (38%) and water (18%), and within 50 miles by grassland (29%) and water (27%).

This report illustrates the typical weather in Roslyakovo, 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 Roslyakovo.

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

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Roslyakovo and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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.

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