# monthlyStatistics(for:forMonthsIn:including:) Returns monthly weather statistics for the requested location, for each month within the specified date interval. ``` final func monthlyStatistics(for location: CLLocation, forMonthsIn interval: DateInterval, including dataSets: repeat MonthlyWeatherStatisticsQuery) async throws -> (repeat MonthlyWeatherStatistics) where repeat each T : Decodable, repeat each T : Encodable, repeat each T : Equatable, repeat each T : Sendable ``` ## Parameters `location` The requested location. `interval` The date interval for which to obtain monthly weather statistics. The end date of the interval will be capped at 1 year after the start date. ## Return Value The requested monthly weather statistics. ## Discussion> Throws: Weather data error `WeatherError` The statistics returned for each month are derived from weather data recorded over the past decades, to the present date. Each item returned represents statistics for a particular Gregorian Calendar month of the year. This is a variadic API in which any combination of data sets can be requested and returned as a tuple. Here’s an example: ```swift let (monthlyPrecipitationStatistics, monthlyTemperatureStatistics) = try await service.monthlyStatistics(for: newYork, forMonthsIn: interval, including: .precipitation, .temperature) ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)