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October Weather in Kalofer Bulgaria

Daily high temperatures decrease by 14°F, from 67°F to 53°F, rarely falling below 41°F or exceeding 77°F.

Daily low temperatures decrease by 10°F, from 44°F to 34°F, rarely falling below 25°F or exceeding 51°F.

For reference, on July 31, the hottest day of the year, temperatures in Kalofer typically range from 56°F to 81°F, while on January 19, the coldest day of the year, they range from 20°F to 34°F.

Average High and Low Temperature in October in Kalofer

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 October. 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 October in Kalofer

Average Hourly Temperature in October in KaloferOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNovfreezingvery coldcoldcoolcoolcomfortablewarm
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.

Terra Alta, West Virginia, United States (5,069 miles away) is the far-away foreign place with temperatures most similar to Kalofer (view comparison).

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The month of October in Kalofer experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 38% to 48%.

The clearest day of the month is October 1, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on November 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.

Cloud Cover Categories in October in Kalofer

Cloud Cover Categories in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNovOct 162%Oct 162%Oct 3152%Oct 3152%Oct 1157%Oct 1157%Oct 2154%Oct 2154%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 Kalofer, the chance of a wet day over the course of October is decreasing, starting the month at 19% and ending it at 14%.

For reference, the year's highest daily chance of a wet day is 36% on June 3, and its lowest chance is 13% on November 2.

Over the course of October in Kalofer, the chance of a day with only rain decreases from 19% to 11%, 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 October in Kalofer

Probability of Precipitation in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%SepNovOct 219%Oct 219%Oct 3114%Oct 3114%Oct 1118%Oct 1118%Oct 2115%Oct 2115%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 October in Kalofer is decreasing, starting the month at 1.4 inches, when it rarely exceeds 3.1 inches or falls below 0.3 inches, and ending the month at 0.9 inches, when it rarely exceeds 2.0 inches or falls below 0.1 inches.

Average Monthly Rainfall in October in Kalofer

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 October in Kalofer is increasing, starting the month at 0.1 inches, when it rarely exceeds 0.0 inches or falls below -0.0 inches, and ending the month at 1.5 inches, when it rarely exceeds 4.8 inches or falls below -0.0 inches.

Average Monthly Snowfall in October in Kalofer

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 October in Kalofer, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 23 minutes, implying an average daily decrease of 2 minutes, 45 seconds, and weekly decrease of 19 minutes, 16 seconds.

The shortest day of the month is October 31, with 10 hours, 21 minutes of daylight and the longest day is October 1, with 11 hours, 43 minutes of daylight.

Hours of Daylight and Twilight in October in Kalofer

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 Kalofer is 7:46 AM on October 26 and the earliest sunrise is 59 minutes earlier at 6:48 AM on October 27.

The latest sunset is 7:00 PM on October 1 and the earliest sunset is 1 hour, 47 minutes earlier at 5:13 PM on October 31.

Daylight saving time (DST) starts at 3:00 AM on October 27, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 5:42 AM and sets 15 hours, 19 minutes later, at 9:01 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 9 hours, 3 minutes later, at 4:49 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in October in Kalofer

Sunrise & Sunset with Twilight and Daylight Saving Time in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSepNov6:48 AM6:48 AMOct 275:19 PMOct 275:19 PM7:17 AM7:17 AMOct 17:00 PMOct 17:00 PM7:28 AM7:28 AMOct 116:43 PMOct 116:43 PMDSTOct 27DSTOct 27SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of October. 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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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 October in Kalofer

Solar Elevation and Azimuth in October in KaloferOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMSepNov0010202020304050000101020303040
northeastsouthwest
Solar elevation and azimuth over the course of October 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 October 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 October in Kalofer

Moon Rise, Set & Phases in October in KaloferOct112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSepNovSep 34:56 AMSep 34:56 AMSep 185:35 AMSep 185:35 AMOct 29:50 PMOct 29:50 PMOct 172:27 PMOct 172:27 PMNov 12:48 PMNov 12:48 PMNov 1511:29 PMNov 1511:29 PM6:52 AM6:52 AM8:09 PM8:09 PM7:15 PM7:15 PM7:11 AM7:11 AM6:47 AM6:47 AM6:50 PM6:50 PM6:25 PM6:25 PM8:44 AM8:44 AM6:46 AM6:46 AM4:54 PM4:54 PM4:20 PM4:20 PM7:57 AM7:57 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.
Oct 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
2%5:46 AME6:33 PMW-12:12 PMS252,176 mi
2
0%6:47 AME6:50 PMW-12:51 PMS252,563 mi
3
0%7:48 AME7:08 PMWSW-1:29 PMS252,520 mi
4
3%8:50 AMESE7:27 PMWSW-2:09 PMS252,042 mi
5
7%9:54 AMESE7:49 PMWSW-2:52 PMS251,105 mi
6
12%11:00 AMESE8:16 PMWSW-3:38 PMS249,674 mi
7
20%12:06 PMSE8:50 PMSW-4:28 PMS247,713 mi
8
28%1:10 PMSE9:33 PMSW-5:22 PMS245,207 mi
9
38%2:10 PMSE10:27 PMSW-6:19 PMS242,178 mi
10
50%3:02 PMSE11:32 PMSW-7:17 PMS238,712 mi
11
60%3:45 PMSE--8:15 PMS234,970 mi
12
71%-12:44 AMWSW4:20 PMESE9:10 PMS231,189 mi
13
81%-2:01 AMWSW4:49 PMESE10:04 PMS227,672 mi
14
90%-3:20 AMWSW5:14 PMESE10:55 PMS224,756 mi
15
96%-4:39 AMW5:38 PME11:46 PMS222,765 mi
16
98%-5:59 AMW6:01 PME--
17
100%-7:21 AMWNW6:25 PMENE12:37 AMS221,948 mi
18
100%-8:44 AMWNW6:54 PMENE1:29 AMS222,433 mi
19
97%-10:08 AMWNW7:28 PMENE2:25 AMS224,188 mi
20
91%-11:29 AMNW8:11 PMNE3:23 AMS227,026 mi
21
83%-12:43 PMNW9:04 PMNE4:24 AMS230,638 mi
22
73%-1:45 PMNW10:06 PMNE5:25 AMS234,653 mi
23
62%-2:33 PMNW11:14 PMNE6:23 AMS238,703 mi
24
50%-3:11 PMWNW-7:17 AMS242,479 mi
25
41%12:23 AMENE3:39 PMWNW-8:06 AMS245,760 mi
26
32%1:31 AMENE4:03 PMWNW-8:51 AMS248,410 mi
27
23%2:36 AMENE3:22 PMWNW-8:33 AMS250,371 mi
28
15%2:38 AME3:40 PMW-9:12 AMS251,645 mi
29
9%3:40 AME3:57 PMW-9:50 AMS252,277 mi
30
4%4:41 AME4:14 PMW-10:29 AMS252,338 mi
31
1%5:42 AMESE4:33 PMWSW-11:08 AMS251,908 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 Kalofer is essentially constant during October, remaining around 0% throughout.

For reference, on July 29, the muggiest day of the year, there are muggy conditions 6% of the time, while on October 10, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in October in Kalofer

Humidity Comfort Levels in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SepNovOct 10%Oct 10%Oct 310%Oct 310%Oct 110%Oct 110%Oct 210%Oct 210%comfortablecomfortabledrydryhumidhumid
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 Kalofer is essentially constant during October, remaining within 0.1 miles per hour of 5.2 miles per hour throughout.

For reference, on February 27, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on October 29, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.

The lowest daily average wind speed during October is 5.2 miles per hour on October 29.

Average Wind Speed in October in Kalofer

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 Kalofer throughout October is predominantly from the north, with a peak proportion of 39% on October 2.

Wind Direction in October in Kalofer

Wind Direction in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%SepNovwesteastnorthsouth
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).

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 Kalofer typically lasts for 6.0 months (185 days), from around April 16 to around October 18, rarely starting before March 27 or after May 8, and rarely ending before September 30 or after November 5.

During October in Kalofer, the chance that a given day is within the growing season is very rapidly decreasing falling from 89% to 18% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in October in Kalofer

Time Spent in Various Temperature Bands and the Growing Season in October in Kalofergrowing seasonOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SepNov89%Oct 189%Oct 1Oct 3118%Oct 3118%69%Oct 1169%Oct 11Oct 2142%Oct 2142%freezingvery coldcoldcoolcomfortablewarm
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 Kalofer are gradually increasing during October, increasing by 110°F, from 2,232°F to 2,342°F, over the course of the month.

Growing Degree Days in October in Kalofer

Growing Degree Days in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312,000°F2,000°F2,100°F2,100°F2,200°F2,200°F2,300°F2,300°F2,400°F2,400°F2,500°F2,500°F2,600°F2,600°FSepNovOct 12,232°FOct 12,232°FOct 312,342°FOct 312,342°FOct 112,288°FOct 112,288°FOct 212,322°FOct 212,322°F
The average growing degree days accumulated over the course of October, 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 Kalofer is decreasing during October, falling by 1.4 kWh, from 4.1 kWh to 2.7 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in October in Kalofer

Average Daily Incident Shortwave Solar Energy in October in KaloferOct11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhSepNovOct 14.1 kWhOct 14.1 kWhOct 312.7 kWhOct 312.7 kWhOct 113.6 kWhOct 113.6 kWhOct 213.1 kWhOct 213.1 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 Kalofer are 42.617 deg latitude, 24.983 deg longitude, and 2,398 ft elevation.

The topography within 2 miles of Kalofer contains very significant variations in elevation, with a maximum elevation change of 1,759 feet and an average elevation above sea level of 2,273 feet. Within 10 miles contains very significant variations in elevation (6,926 feet). Within 50 miles also contains extreme variations in elevation (7,602 feet).

The area within 2 miles of Kalofer is covered by trees (66%) and cropland (26%), within 10 miles by trees (54%) and cropland (25%), and within 50 miles by cropland (44%) and trees (42%).

This report illustrates the typical weather in Kalofer, 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 Kalofer.

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

The stations contributing to this reconstruction are:

  • Graf Ignatievo (LBPG, 43%, 26 mi, southwest, -1,755 ft elevation change)
  • Gorna Orechovista (LBGO, 22%, 52 mi, northeast, -2,116 ft elevation change)
  • Dolna Mitropoliya Air Base (LBPL, 19%, 63 mi, northwest, -2,067 ft elevation change)
  • Bezmer Air Base (LBIA, 17%, 71 mi, east, -1,890 ft elevation change)

To get a sense of how much these sources agree with each other, you can view a comparison of Kalofer 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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