KDFW — DALLAS/FT WORTH

Dallas/Ft Worth, TX, US  ·  America/Chicago  ·  32.8968°, -97.0380°  ·  174m elevation

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Daily METAR Observations

Time Temperature Dew Point Humidity Wind Wind Speed Wind Gust Pressure Precip. Condition
12:53 AM 81 °F 73 °F 77 % SE 12 mph 0 mph 29.94 in 0.0 in Partly Cloudy
1:53 AM 80 °F 73 °F 79 % SSE 10 mph 0 mph 29.94 in 0.0 in Mostly Cloudy
2:53 AM 80 °F 73 °F 79 % S 10 mph 0 mph 29.93 in 0.0 in Partly Cloudy
3:53 AM 79 °F 73 °F 82 % S 8 mph 0 mph 29.93 in 0.0 in Partly Cloudy
4:53 AM 79 °F 73 °F 82 % S 10 mph 0 mph 29.94 in 0.0 in Mostly Cloudy
5:53 AM 78 °F 73 °F 85 % S 10 mph 0 mph 29.94 in 0.0 in Mostly Cloudy
6:53 AM 78 °F 73 °F 85 % S 13 mph 0 mph 29.96 in 0.0 in Mostly Cloudy
7:53 AM 80 °F 74 °F 82 % S 14 mph 0 mph 29.97 in 0.0 in Mostly Cloudy
8:53 AM 83 °F 73 °F 72 % SSW 14 mph 0 mph 29.97 in 0.0 in Partly Cloudy
9:53 AM 85 °F 72 °F 65 % SSW 14 mph 0 mph 29.97 in 0.0 in Mostly Cloudy
10:53 AM 87 °F 71 °F 59 % S 16 mph 0 mph 29.96 in 0.0 in Mostly Cloudy
11:53 AM 90 °F 71 °F 54 % SSW 16 mph 24 mph 29.94 in 0.0 in Mostly Cloudy
12:53 PM 88 °F 71 °F 57 % S 18 mph 25 mph 29.92 in 0.0 in Mostly Cloudy
1:53 PM 90 °F 71 °F 54 % S 16 mph 0 mph 29.92 in 0.0 in Mostly Cloudy
2:53 PM 91 °F 71 °F 52 % S 17 mph 25 mph 29.90 in 0.0 in Mostly Cloudy
3:53 PM 91 °F 71 °F 52 % S 16 mph 23 mph 29.89 in 0.0 in Mostly Cloudy
4:53 PM 92 °F 71 °F 51 % S 17 mph 0 mph 29.88 in 0.0 in Mostly Cloudy
5:53 PM 90 °F 69 °F 51 % S 18 mph 25 mph 29.87 in 0.0 in Mostly Cloudy
6:53 PM 90 °F 69 °F 51 % S 14 mph 0 mph 29.86 in 0.0 in Partly Cloudy
7:53 PM 89 °F 68 °F 50 % S 16 mph 0 mph 29.86 in 0.0 in Fair
8:53 PM 87 °F 68 °F 53 % S 13 mph 0 mph 29.84 in 0.0 in Fair
9:53 PM 85 °F 70 °F 61 % S 16 mph 23 mph 29.85 in 0.0 in Fair
10:53 PM 85 °F 69 °F 59 % S 16 mph 23 mph 29.87 in 0.0 in Fair

Time Series

Summary

Temperature (°F) Actual
High Temp
Low Temp
Day Average Temp
Precipitation (in)Actual
Precipitation
Dew Point (°F) Actual
High
Low
Average
Humidity (%)Actual
Average Humidity
Wind (mph) Actual
Max Wind Speed
Max Wind Gust
Visibility
Pressure (in)Actual
Average Pressure
AstronomyDay LengthRise / Set
Actual Time14h 20m6:17 AM / 8:38 PM
Civil Twilight5:50 AM / 9:05 PM
Nautical Twilight5:15 AM / 9:41 PM
Astronomical Twilight4:37 AM / 10:19 PM
Moon: New Moon

Methodology

Day Boundaries & Time

A "day" is defined as midnight to midnight (00:00:00 through 23:59:59) in the station's local time, using the IANA timezone assigned to each station (e.g. America/Chicago, Europe/London). Daylight Saving Time transitions are respected automatically — when a station's local clocks spring forward or fall back, the UTC boundaries of the day shift accordingly. This means a "day" in the spring DST transition is 23 hours, and in the fall transition it is 25 hours. All observations are stored internally in UTC and converted to local time for display.

Temperature

The FAA reports temperature in degrees Celsius. Values are stored to one decimal place — if a source value has additional precision, it is rounded on storage. Fahrenheit values are computed as °F = °C × 9/5 + 32. All temperatures are displayed as whole numbers (rounded to the nearest integer) in both Celsius and Fahrenheit. High and low temperatures are the maximum and minimum observed values for the day. The day average is the arithmetic mean of all observed temperatures, rounded to the nearest whole number.

Dew Point & Relative Humidity

Dew point is stored and displayed using the same rounding method as temperature (whole numbers). Relative humidity is not reported directly in METARs — it is calculated from the temperature and dew point using the Magnus formula: RH = 100 × exp[(17.27 × Td)/(237.7 + Td) − (17.27 × T)/(237.7 + T)], where T is temperature and Td is dew point, both in °C. The result is rounded to the nearest whole percent and clamped between 0% and 100%.

Wind

Wind direction is reported in degrees true (0–360). The compass direction shown (N, NNE, NE, etc.) divides the compass into 16 sectors of 22.5° each. Variable winds (reported as "VRB" in the METAR) are displayed as "CALM". Wind speed is reported in knots (integer). Miles per hour is computed as mph = kt × 1.15078 and kilometers per hour as km/h = kt × 1.852, both displayed as whole numbers. Wind gust is shown only when the METAR includes a gust value.

Pressure

The altimeter setting is reported in inches of mercury (inHg) to two decimal places. This is the station pressure corrected to sea level and is the value displayed. When the METAR also includes sea level pressure in millibars, that value is used in daily summary calculations.

Precipitation

Precipitation accumulations (1-hour, 3-hour, 6-hour, and 24-hour) are included when reported by the station. A value of 0.0005 inches represents trace precipitation in the FAA convention. The daily total in the summary is the sum of all 1-hour accumulations that exceed trace. Not all stations report precipitation data.

Sky Condition & Weather

The "Condition" column is derived from two METAR fields. If a weather phenomena code is present (e.g. RA for rain, SN for snow, FG for fog, TSRA for thunderstorms), it takes priority and the intensity prefix (- for light, + for heavy) is included. When no active weather is reported, the condition is derived from the highest sky cover layer: CLR/SKC/FEW = Fair, SCT = Partly Cloudy, BKN = Mostly Cloudy, OVC = Overcast.

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