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March Weather in Hartstown Ireland

Daily high temperatures increase by 3°F, from 48°F to 51°F, rarely falling below 42°F or exceeding 58°F.

Daily low temperatures are around 38°F, rarely falling below 30°F or exceeding 46°F.

For reference, on July 26, the hottest day of the year, temperatures in Hartstown typically range from 54°F to 67°F, while on February 18, the coldest day of the year, they range from 37°F to 47°F.

Average High and Low Temperature in March in Hartstown

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 March. 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 March in Hartstown

Average Hourly Temperature in March in HartstownMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMFebAprNowNowvery coldcoldcold
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.

Victoria, Canada (4,502 miles away) is the far-away foreign place with temperatures most similar to Hartstown (view comparison).

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The month of March in Hartstown experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 62% throughout the month.

The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 40% of the time.

For reference, on January 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 68%, while on July 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 50%.

Cloud Cover Categories in March in Hartstown

Cloud Cover Categories in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprMar 136%Mar 136%Mar 3140%Mar 3140%Mar 1136%Mar 1136%Mar 2137%Mar 2137%NowNowclearmostly 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 Hartstown, the chance of a wet day over the course of March is essentially constant, remaining around 30% throughout.

For reference, the year's highest daily chance of a wet day is 42% on December 31, and its lowest chance is 26% on April 21.

Probability of Precipitation in March in Hartstown

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 March in Hartstown is essentially constant, remaining about 1.8 inches throughout, and rarely exceeding 3.1 inches or falling below 0.6 inches.

Average Monthly Rainfall in March in Hartstown

Average Monthly Rainfall in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 in4.0 in4.0 inFebAprMar 11.8 inMar 11.8 inMar 311.8 inMar 311.8 inMar 111.8 inMar 111.8 inMar 211.8 inMar 211.8 inNowNow
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.

Over the course of March in Hartstown, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 2 hours, 7 minutes, implying an average daily increase of 4 minutes, 15 seconds, and weekly increase of 29 minutes, 42 seconds.

The shortest day of the month is March 1, with 10 hours, 52 minutes of daylight and the longest day is March 31, with 12 hours, 59 minutes of daylight.

Hours of Daylight and Twilight in March in Hartstown

Hours of Daylight and Twilight in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFebAprMar 2012 hr, 8 minMar 2012 hr, 8 minnightnightdaydayMar 110 hr, 52 minMar 110 hr, 52 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 latest sunrise of the month in Hartstown is 7:12 AM on March 1 and the earliest sunrise is 1 hour, 9 minutes earlier at 6:02 AM on March 30.

The earliest sunset is 6:04 PM on March 1 and the latest sunset is 1 hour, 56 minutes later at 8:00 PM on March 31.

Daylight saving time (DST) ends at 2:00 AM on March 31, 2024, shifting sunrise and sunset to be an hour earlier.

For reference, on June 20, the longest day of the year, the Sun rises at 4:56 AM and sets 17 hours, 1 minute later, at 9:57 PM, while on December 21, the shortest day of the year, it rises at 8:39 AM and sets 7 hours, 29 minutes later, at 4:08 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in March in Hartstown

Sunrise & Sunset with Twilight and Daylight Saving Time in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMFebApr6:02 AM6:02 AMMar 306:58 PMMar 306:58 PM7:12 AM7:12 AMMar 16:04 PMMar 16:04 PM6:48 AM6:48 AMMar 116:23 PMMar 116:23 PMMar 31DSTMar 31DSTSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of March. 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 March in Hartstown

Solar Elevation and Azimuth in March in HartstownMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMFebApr0010202020303050000101020303040NowNow
northeastsouthwest
Solar elevation and azimuth over the course of March 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 March 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 March in Hartstown

Moon Rise, Set & Phases in March in HartstownMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFebAprFeb 911:00 PMFeb 911:00 PMFeb 2412:31 PMFeb 2412:31 PMMar 109:01 AMMar 109:01 AMMar 257:01 AMMar 257:01 AMApr 87:22 PMApr 87:22 PMApr 2412:50 AMApr 2412:50 AM8:21 AM8:21 AM4:32 PM4:32 PM4:34 PM4:34 PM7:52 AM7:52 AM7:10 AM7:10 AM6:43 PM6:43 PM6:02 PM6:02 PM6:26 AM6:26 AM6:37 AM6:37 AM8:13 PM8:13 PM8:30 PM8:30 PM6:02 AM6:02 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.
Mar 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
74%-8:45 AMWSW-4:20 AMS247,480 mi
2
65%1:14 AMSE9:01 AMSW-5:08 AMS244,784 mi
3
50%2:35 AMSE9:25 AMSW-6:00 AMS241,528 mi
4
43%3:53 AMSE10:02 AMSW-6:57 AMS237,828 mi
5
32%4:59 AMSE10:59 AMSW-7:59 AMS233,887 mi
6
22%5:48 AMSE12:18 PMSW-9:03 AMS229,995 mi
7
13%6:21 AMSE1:50 PMSW-10:05 AMS226,506 mi
8
5%6:42 AMSE3:29 PMWSW-11:05 AMS223,789 mi
9
1%6:58 AMESE5:07 PMWSW-12:01 PMS222,154 mi
10
0%7:10 AME6:43 PMW-12:54 PMS221,800 mi
11
2%7:21 AME8:17 PMW-1:45 PMS222,769 mi
12
7%7:32 AMENE9:51 PMWNW-2:35 PMS224,941 mi
13
15%7:44 AMENE11:25 PMWNW-3:26 PMS228,062 mi
14
25%7:59 AMNE--4:19 PMS231,798 mi
15
35%-12:57 AMNW8:20 AMNE5:13 PMS235,789 mi
16
46%-2:23 AMNW8:51 AMNE6:09 PMS239,706 mi
17
50%-3:36 AMNW9:35 AMNE7:04 PMS243,286 mi
18
67%-4:31 AMNW10:35 AMNE7:58 PMS246,346 mi
19
76%-5:08 AMNW11:47 AMNE8:48 PMS248,788 mi
20
84%-5:33 AMNW1:04 PMNE9:35 PMS250,583 mi
21
90%-5:50 AMNW2:21 PMENE10:19 PMS251,753 mi
22
95%-6:02 AMWNW3:37 PMENE10:59 PMS252,349 mi
23
98%-6:11 AMWNW4:50 PMENE11:39 PMS252,436 mi
24
99%-6:19 AMW6:02 PME--
25
100%-6:26 AMW7:14 PME12:17 AMS252,072 mi
26
100%-6:34 AMWSW8:27 PMESE12:56 AMS251,299 mi
27
97%-6:42 AMWSW9:43 PMESE1:36 AMS250,139 mi
28
93%-6:53 AMWSW11:01 PMSE2:18 AMS248,593 mi
29
87%-7:07 AMSW-3:04 AMS246,652 mi
30
79%12:22 AMSE7:28 AMSW-3:55 AMS244,304 mi
31
71%2:41 AMSE2:41 AMSE2:41 AMSE8:59 AMSW3:00 AMSE241,891 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 Hartstown is essentially constant during March, remaining around 0% throughout.

For reference, on August 17, 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 March in Hartstown

Humidity Comfort Levels in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FebAprMar 10%Mar 10%Mar 310%Mar 310%Mar 110%Mar 110%Mar 210%Mar 210%drydry
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 Hartstown is decreasing during March, decreasing from 14.9 miles per hour to 13.1 miles per hour over the course of the month.

For reference, on January 3, the windiest day of the year, the daily average wind speed is 16.4 miles per hour, while on July 23, the calmest day of the year, the daily average wind speed is 10.4 miles per hour.

Average Wind Speed in March in Hartstown

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 Hartstown throughout March is predominantly from the west, with a peak proportion of 41% on March 7.

Wind Direction in March in Hartstown

Wind Direction in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%FebAprNowNowwestsoutheastnorth
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).

Hartstown 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 Hartstown is essentially constant during March, remaining around 46°F throughout.

The lowest average surface water temperature during March is 46°F on March 7.

Average Water Temperature in March in Hartstown

Average Water Temperature in March in HartstownMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313143°F43°F44°F44°F45°F45°F46°F46°F47°F47°F48°F48°F49°F49°F50°F50°F51°F51°FFebAprMar 746°FMar 746°FMar 3146°FMar 3146°FMar 2146°FMar 2146°FNowNow
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 Hartstown typically lasts for 6.9 months (211 days), from around April 13 to around November 10, rarely starting before March 15 or after May 8, and rarely ending before October 16 or after December 2.

The month of March in Hartstown is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 4% to 26% over the course of the month.

Time Spent in Various Temperature Bands and the Growing Season in March in Hartstown

Time Spent in Various Temperature Bands and the Growing Season in March in Hartstowngrowing seasonMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprMar 14%Mar 14%Mar 3126%Mar 3126%Mar 118%Mar 118%Mar 2114%Mar 2114%50%Apr 1350%Apr 13NowNowvery coldcoldcoolfreezing
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 Hartstown are essentially constant during March, remaining within 8°F of 20°F throughout.

Growing Degree Days in March in Hartstown

Growing Degree Days in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031315°F5°F10°F10°F15°F15°F20°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°FFebAprMar 112°FMar 112°FMar 3127°FMar 3127°FMar 1116°FMar 1116°FMar 2121°FMar 2121°FNowNow
The average growing degree days accumulated over the course of March, 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 Hartstown is increasing during March, rising by 1.4 kWh, from 2.0 kWh to 3.4 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in March in Hartstown

Average Daily Incident Shortwave Solar Energy in March in HartstownMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhFebAprMar 12.0 kWhMar 12.0 kWhMar 313.4 kWhMar 313.4 kWhMar 112.4 kWhMar 112.4 kWhMar 212.9 kWhMar 212.9 kWhNowNow
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 Hartstown are 53.393 deg latitude, -6.427 deg longitude, and 200 ft elevation.

The topography within 2 miles of Hartstown contains only modest variations in elevation, with a maximum elevation change of 226 feet and an average elevation above sea level of 199 feet. Within 10 miles contains only modest variations in elevation (1,352 feet). Within 50 miles contains very significant variations in elevation (3,064 feet).

The area within 2 miles of Hartstown is covered by artificial surfaces (54%), grassland (31%), and cropland (11%), within 10 miles by grassland (39%) and artificial surfaces (35%), and within 50 miles by grassland (37%) and water (36%).

This report illustrates the typical weather in Hartstown, 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 Hartstown.

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