Average Weather in January in Castellar del Riu Spain
The lowest daily average high temperature is 41°F on January 10.
Daily low temperatures are around 24°F, rarely falling below 16°F or exceeding 31°F. The lowest daily average low temperature is 23°F on January 15.
For reference, on July 30, the hottest day of the year, temperatures in Castellar del Riu typically range from 53°F to 75°F, while on January 11, the coldest day of the year, they range from 23°F to 41°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
Deschutes River Woods, Oregon, United States (5,531 miles away) and Pine Mountain Club, California, United States (5,946 miles) are the far-away foreign places with temperatures most similar to Castellar del Riu (view comparison).
The month of January in Castellar del Riu experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 46% throughout the month. The highest chance of overcast or mostly cloudy conditions is 47% on January 20.
The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on October 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Castellar del Riu, the chance of a wet day over the course of January is essentially constant, remaining around 13% throughout.
For reference, the year's highest daily chance of a wet day is 24% on May 6, and its lowest chance is 12% on July 14.
Over the course of January in Castellar del Riu, the chance of a day with only rain remains an essentially constant 5% throughout, the chance of a day with mixed snow and rain remains an essentially constant 3% throughout, and the chance of a day with only snow remains an essentially constant 4% throughout.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Castellar del Riu is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.4 inches.
The lowest average 31-day accumulation is 0.4 inches on January 8.
Average Monthly Rainfall in January
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 January in Castellar del Riu is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.3 inches or falling to 0.0 inches.
The highest average 31-day liquid-equivalent accumulation is 0.4 inches on January 13.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in Castellar del Riu, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 48 minutes, implying an average daily increase of 1 minute, 37 seconds, and weekly increase of 11 minutes, 19 seconds.
The shortest day of the month is January 1, with 9 hours, 10 minutes of daylight and the longest day is January 31, with 9 hours, 59 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Castellar del Riu is 8:21 AM on January 5 and the earliest sunrise is 14 minutes earlier at 8:07 AM on January 31.
The earliest sunset is 5:31 PM on January 1 and the latest sunset is 34 minutes later at 6:06 PM on January 31.
Daylight saving time is observed in Castellar del Riu during 2018, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:16 AM and sets 15 hours, 15 minutes later, at 9:32 PM, while on December 21, the shortest day of the year, it rises at 8:17 AM and sets 9 hours, 6 minutes later, at 5:23 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Castellar del Riu is essentially constant during January, remaining around 0% throughout.
For reference, on August 7, 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 January
The average hourly wind speed in Castellar del Riu is essentially constant during January, remaining within 0.2 miles per hour of 6.5 miles per hour throughout.
For reference, on April 5, the windiest day of the year, the daily average wind speed is 7.0 miles per hour, while on August 28, the calmest day of the year, the daily average wind speed is 4.9 miles per hour.
Average Wind Speed in January
Wind Direction in January
Castellar del Riu 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 Castellar del Riu is essentially constant during January, remaining within 1°F of 56°F throughout.
Average Water Temperature in January
The growing season in Castellar del Riu typically lasts for 5.1 months (155 days), from around May 8 to around October 10, rarely starting before April 17 or after May 29, and rarely ending before September 19 or after October 31.
The month of January in Castellar del Riu is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Castellar del Riu are essentially constant during January, remaining within 1°F of 1°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in Castellar del Riu is gradually increasing during January, rising by 0.7 kWh, from 2.0 kWh to 2.7 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Castellar del Riu are 42.123 deg latitude, 1.774 deg longitude, and 4,436 ft elevation.
The topography within 2 miles of Castellar del Riu contains extreme variations in elevation, with a maximum elevation change of 3,514 feet and an average elevation above sea level of 5,040 feet. Within 10 miles also contains extreme variations in elevation (6,667 feet). Within 50 miles also contains extreme variations in elevation (10,102 feet).
The area within 2 miles of Castellar del Riu is covered by trees (91%), within 10 miles by trees (65%) and cropland (14%), and within 50 miles by trees (53%) and cropland (22%).
This report illustrates the typical weather in Castellar del Riu 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 6 weather stations near enough to contribute to our estimation of the temperature and dew point in Castellar del Riu.
For each station, the records are corrected for the elevation difference between that station and Castellar del Riu 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 Castellar del Riu is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Castellar del Riu and a given station.
The stations contributing to this reconstruction are: Aeroport de Girona - Costa Brava (19%, 85 kilometers, east); Barcelona–El Prat Airport (16%, 95 kilometers, south); Saint-Girons - Antichan (20%, 113 kilometers, northwest); Perpignan–Rivesaltes Airport (15%, 113 kilometers, northeast); Reus Airport (15%, 120 kilometers, southwest); and Carcassonne-Salvaza (15%, 129 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .