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Calculate wind chill from temperature and wind speed in several units, even without a network connection.

Product Description

Wind Chill, Snow Day Pro

Calculate wind chill from temperature and wind speed in several units, even without a network connection.

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About this app

You put care into the plans you make. Thank you for using Wind Chill to check the cold, choose a time to head out, and keep family or coworkers informed.

CHECK HOW COLD IT FEELS

See how a windy morning may feel before you head out.

– Enter air temperature and wind speed.
– Choose Fahrenheit or Celsius.
– Use MPH, KPH, or knots for wind.
– See wind chill in both temperature units.
– Calculate offline as often as you need.
– Revisit your five most recent results.

LOOK AHEAD WITH U.S. WEATHER

Check NOAA and National Weather Service observations and forecasts.

– Fetch weather for Current Location or a saved place.
– Use saved coordinates without location permission.
– Check station conditions and observation times.
– Browse daily forecasts and hourly weather graphs.
– Compare temperature, wind chill, and sustained wind.
– See precipitation chances and unavailable readings.

PLAN AROUND YOUR SCHEDULE

Save the place and activity window that matter, such as a 7 to 8 a.m. school run.

– Keep home, school, work, and travel places handy.
– Choose one date or repeat on selected weekdays.
– Keep each plan in its saved time zone.
– Review temperature, wind chill, gusts, and precipitation.
– Add a note, duplicate a plan, or change its times.
– Open an existing activity to review its details.

COMPARE POSSIBLE TIMES

Decide when to head out using the weather conditions that matter to you.

– Compare windows of the same duration.
– Look for warmer hours or lower sustained wind.
– Compare the highest hourly precipitation chance.
– Set temperature, wind chill, wind, and gust limits.
– Leave a limit blank when it does not matter.
– See why a window meets your limits or cannot be assessed.

TAKE A CLOSER LOOK WITH SNOWDAY

Review winter conditions with snow, liquid precipitation, and planning estimates.

– See 24-hour and 48-hour estimates where forecasts support them.
– Keep small liquid amounts distinct from zero.
– Recognize missing information before comparing conditions.
– Read precipitation chance separately from precipitation amount.
– Review planning scores for schools, workplaces, and roads.

SnowDay offers planning estimates. Schools, employers, and road authorities make official decisions.

REMINDERS FOR YOUR ROUTINE

– Set a temperature or wind chill threshold.
– Choose Fahrenheit or Celsius and a reminder lead time.
– Use the weekdays and activity window saved in your plan.
– Read when the forecast was checked.
– Tap a reminder to open the relevant activity.

Reminders need notification permission and a recent forecast you have fetched. Refresh when you need new weather.

KEEP THE DETAILS CLOSE

– See your next activity in a Home Screen widget.
– Recognize older or unavailable weather.
– Share a winter-planning card as text or an image.
– Include its place, valid period, conditions, source, and checked time.
– Choose whether to include your note or exact coordinates.
– Save school-announcement and state road-condition links.
– Open section help beside the setting you are changing.

ON IPHONE, IPAD, AND APPLE WATCH

Use the offline Apple Watch calculator, keep records on your watch, and share individual records when you choose.

START FREE

Manual calculations are unlimited. Try five successful iPhone weather fetches per local calendar day for five consecutive days, starting with your first successful free fetch.

Monthly Pro or Lifetime Pro adds unlimited weather fetches, advanced forecasts, SnowDay, saved places, activity planning, reminders, cards, widgets, and record tools. Restore Purchases is available.

Weather can change or arrive late. Check current official forecasts, warnings, and local information before making decisions.

For monthly subscriptions:
Monthly Pro is a 1-month auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/