/**
 * Temperature conversion utilities
 * Centralized to avoid duplication across handlers
 */
/**
 * Convert temperature value to Fahrenheit based on unit code
 * @param value - Temperature value (can be null)
 * @param unitCode - Unit code from NOAA API (e.g., "wmoUnit:degC", "wmoUnit:degF")
 * @returns Temperature in Fahrenheit, or null if value is null
 */
export declare function convertToFahrenheit(value: number | null, unitCode: string): number | null;
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