April 1977 Weather History at Cranbrook/Canadian Rockies International Airport Canada

This report shows the past weather for Cranbrook/Canadian Rockies International Airport, providing a weather history for April 1977. It features all historical weather data series we have available, including the Cranbrook/Canadian Rockies International Airport temperature history for April 1977. You can drill down from year to month and even day level reports by clicking on the graphs.

Cranbrook/Canadian Rockies International Airport Temperature History April 1977

Temperature history in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303020°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FMarMay
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in April 1977 at Cranbrook/Canadian Rockies International Airport

Hourly Temperature in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMayfreezingvery coldcoldcoolwarm
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 hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in April 1977 at Cranbrook/Canadian Rockies International Airport

Cloud Cover in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Observed Weather in April 1977 at Cranbrook/Canadian Rockies International Airport

Observed Weather in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Wed, Apr 13 Showers of Light Rain-SHRA
Thu, Apr 14 Showers of Light Snow, Ice Pellets-SHSN, PL
Fri, Apr 15 Light Snow-SN
Sat, Apr 16 Light Rain, Showers of Light Rain-RA, -SHRA
Fri, Apr 29 Thunderstorm with Rain, Showers of Light RainTSRA, -SHRA
Sat, Apr 30 Showers of Light Rain-SHRA

Hours of Daylight and Twilight in April 1977 at Cranbrook/Canadian Rockies International Airport

Hours of Daylight and Twilight in April 1977 at Cranbrook/Canadian Rockies International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrMarMaynightnightdaydayApr 112 hr, 55 minApr 112 hr, 55 minApr 3014 hr, 37 minApr 3014 hr, 37 minApr 1113 hr, 31 minApr 1113 hr, 31 minApr 2114 hr, 7 minApr 2114 hr, 7 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.

Sunrise & Sunset with Twilight and Daylight Saving Time in April 1977 at Cranbrook/Canadian Rockies International Airport

Sunrise & Sunset with Twilight and Daylight Saving Time in April 1977 at Cranbrook/Canadian Rockies International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMMarMay5:35 AM5:35 AMApr 237:48 PMApr 237:48 PM6:22 AM6:22 AMApr 308:59 PMApr 308:59 PM6:19 AM6:19 AMApr 17:14 PMApr 17:14 PM5:58 AM5:58 AMApr 117:30 PMApr 117:30 PMApr 24DSTApr 24DST
The solar day over the course of April 1977. 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.

Solar Elevation and Azimuth in April 1977 at Cranbrook/Canadian Rockies International Airport

Solar Elevation and Azimuth in April 1977 at Cranbrook/Canadian Rockies International AirportApr11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMMarMay00102020303040500010102030304040
northeastsouthwest
Solar elevation and azimuth over the course of April 1977. 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).

Moon Rise, Set & Phases in April 1977 at Cranbrook/Canadian Rockies International Airport

Moon Rise, Set & Phases in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMMarMayApr 39:09 PMApr 39:09 PMApr 183:36 AMApr 183:36 AMMay 37:04 AMMay 37:04 AM7:09 PM7:09 PM6:26 AM6:26 AM5:55 AM5:55 AM8:14 PM8:14 PM8:17 PM8:17 PM6:32 AM6:32 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.
Apr 1977IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
95%-4:56 AMW4:36 PME11:03 PMS230,715 mi
2
99%-5:25 AMW5:51 PME11:55 PMS227,738 mi
3
100%-5:54 AMW7:09 PME--
4
100%-6:26 AMWSW8:27 PMESE12:49 AMS225,619 mi
5
98%-7:01 AMWSW9:45 PMESE1:45 AMS224,539 mi
6
93%-7:41 AMWSW11:00 PMESE2:44 AMS224,554 mi
7
85%-8:29 AMWSW-3:44 AMS225,589 mi
8
75%12:08 AMESE9:23 AMWSW-4:45 AMS227,456 mi
9
64%1:07 AMESE10:24 AMWSW-5:45 AMS229,909 mi
10
50%1:57 AMESE11:29 AMWSW-6:43 AMS232,691 mi
11
41%2:39 AMESE12:37 PMWSW-7:38 AMS235,579 mi
12
31%3:14 AMESE1:46 PMWSW-8:29 AMS238,406 mi
13
21%3:45 AMESE2:53 PMW-9:18 AMS241,068 mi
14
13%4:12 AME4:00 PMW-10:04 AMS243,506 mi
15
7%4:38 AME5:05 PMW-10:49 AMS245,698 mi
16
3%5:02 AME6:09 PMW-11:33 AMS247,630 mi
17
0%5:28 AMENE7:12 PMWNW-12:17 PMS249,288 mi
18
0%5:55 AMENE8:14 PMWNW-1:01 PMS250,641 mi
19
2%6:24 AMENE9:14 PMWNW-1:46 PMS251,636 mi
20
5%6:57 AMENE10:11 PMWNW-2:32 PMS252,198 mi
21
11%7:34 AMENE11:05 PMWNW-3:18 PMS252,241 mi
22
17%8:16 AMENE11:54 PMWNW-4:05 PMS251,675 mi
23
25%9:04 AMENE--4:52 PMS250,429 mi
24
29%-12:38 AMWNW10:58 AMENE1:45 AMNW249,809 mi
25
44%-2:18 AMWNW11:56 AMENE7:27 PMS245,795 mi
26
50%-2:53 AMWNW12:58 PMENE8:14 PMS242,500 mi
27
65%-3:24 AMWNW2:04 PMENE9:02 PMS238,731 mi
28
76%-3:54 AMWNW3:13 PME9:50 PMS234,722 mi
29
85%-4:22 AMW4:25 PME10:40 PMS230,775 mi
30
92%-4:51 AMW5:40 PME11:32 PMS227,240 mi

Humidity Comfort Levels in April 1977 at Cranbrook/Canadian Rockies International Airport

Humidity Comfort Levels in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in April 1977 at Cranbrook/Canadian Rockies International Airport

Wind Speed in April 1977 at Cranbrook/Canadian Rockies International Airport181522291122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphMarMay
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in April 1977 at Cranbrook/Canadian Rockies International Airport

Hourly Wind Speed in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 1977 at Cranbrook/Canadian Rockies International Airport

Hourly Wind Direction in 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in April 1977 at Cranbrook/Canadian Rockies International Airport

Atmospheric Pressure in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303029.2 inHg29.2 inHg29.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHgMarMay
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

Number of Reports by Day in April 1977 at Cranbrook/Canadian Rockies International Airport Spring 1977

Number of Reports by Day in April 1977 at Cranbrook/Canadian Rockies International Airport18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030002424MarMay
regularspecialcorrection
The number of reports per day.

Reports by Hour in April 1977 at Cranbrook/Canadian Rockies International Airport Spring 1977

Reports by Hour in April 1977 at Cranbrook/Canadian Rockies International Airport1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMMarMay
regularspecialcorrection
Indication of what types of reports were recorded during each hour.

This report graphically illustrates the historical weather reports recorded by the weather station at Cranbrook/Canadian Rockies International Airport in April 1977.

METAR Reports

Airport weather stations throughout the world routinely issue METAR weather reports . Such reports are used by pilots, air traffic controllers, meteorologists, climatologists, and other researchers. They are published via radio transmission and on the internet. We have been collecting and archiving published METAR reports since 2011, and have found third-party sources for archived reports from years prior to that.

ISD Reports

The Integrated Surface Database (ISD), maintained and published by NOAA's National Center for Environmental Information , consists of hourly and synoptic weather reports from a variety of sources. We use ISD data to complement and backfill for our METAR archive.

Other Data

The sources for the averages shown in the daily temperature chart are discussed in greater detail on this station's Averages Report.

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.

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.

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